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BOSTON MARATHON 2026

Colleen Iacofano

Bib: 26304β€’F

OH

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F70-74)
#0 / 81
Top 43%
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
33:55
3.11 mi
Rank: #27904
Start β†’ 5K
33:55 | 10:56/mi
10K
1:05:19
6.21 mi
Rank: #27057 (+847)
5K β†’ 10K
31:24 | 10:07/mi
15K
1:36:34
9.32 mi
Rank: #26624 (+433)
10K β†’ 15K
31:15 | 10:04/mi
20K
2:07:51
12.43 mi
Rank: #26287 (+337)
15K β†’ 20K
31:17 | 10:05/mi
HALF
2:14:34
13.11 mi
Rank: #26230 (+57)
20K β†’ HALF
6:43 | 9:52/mi
25K
2:39:23
15.53 mi
Rank: #25992 (+238)
HALF β†’ 25K
24:49 | 10:14/mi
30K
3:13:06
18.64 mi
Rank: #25826 (+166)
25K β†’ 30K
33:43 | 10:52/mi
20M
3:27:52
20.00 mi
Rank: #25731 (+95)
30K β†’ 20M
14:46 | 10:53/mi
21M
3:39:20
21.00 mi
Rank: #25640 (+91)
20M β†’ 21M
11:28 | 11:28/mi
35K
3:47:20
21.75 mi
Rank: #25602 (+38)
21M β†’ 35K
8:00 | 10:42/mi
23M
4:01:16
23.00 mi
Rank: #25558 (+44)
35K β†’ 23M
13:56 | 11:09/mi
24M
4:12:03
24.00 mi
Rank: #25513 (+45)
23M β†’ 24M
10:47 | 10:47/mi
40K
4:21:38
24.85 mi
Rank: #25481 (+32)
24M β†’ 40K
9:35 | 11:13/mi
25.2M
4:26:38
25.20 mi
Rank: #25551 (-70)
40K β†’ 25.2M
5:00 | 14:30/mi
FINISH
4:38:37
26.22 mi
Rank: #25646 (-95)
25.2M β†’ FINISH
11:59 | 11:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:14:34
Pace10:16 /mi
2nd Half
Distance13.11 mi
Time2:24:03
Pace11:00 /mi
πŸ“ŠPositive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:0533:5510:5633:55
10:56
-
10K
6.21 mi12:12:291:05:1910:3131:24
10:07
-0:49
15K
9.32 mi12:43:441:36:3410:2231:15
10:04
-0:03
20K
12.43 mi13:15:012:07:5110:1831:17
10:05
+0:01
HALF
13.11 mi13:21:442:14:3410:166:43
9:52
-0:13
25K
15.53 mi13:46:332:39:2310:1624:49
10:14
+0:22
30K
18.64 mi14:20:163:13:0610:2233:43
10:52
+0:38
20M
20.00 mi14:35:023:27:5210:2414:46
10:53
+0:01
21M
21.00 mi14:46:303:39:2010:2711:28
11:28
+0:35
35K
21.75 mi14:54:303:47:2010:288:00
10:42
-0:46
23M
23.00 mi15:08:264:01:1610:3013:56
11:09
+0:27
24M
24.00 mi15:19:134:12:0310:3110:47
10:47
-0:22
40K
24.85 mi15:28:484:21:3810:329:35
11:13
+0:26
25.2M
25.20 mi15:33:484:26:3810:355:00
14:30
+3:17
FINISH
26.22 mi15:45:474:38:3710:3911:59
11:46
-2:44

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:52 /mi

Average Pace

10:38 /mi

Slowest Pace

14:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:05:28

45% of race

Time at Steady Pace

2:04:42

45% of race

Time at Slower Pace

28:27

10% of race

Average Pace: 10:38 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:41:0533:5510:5633:55
10:56
#27904
10K
6.21 mi12:12:291:05:1910:3131:24
10:07
#27057
15K
9.32 mi12:43:441:36:3410:2231:15
10:04
#26624
20K
12.43 mi13:15:012:07:5110:1831:17
10:05
#26287
HALF
13.11 mi13:21:442:14:3410:166:43
9:52
#26230
25K
15.53 mi13:46:332:39:2310:1624:49
10:14
#25992
30K
18.64 mi14:20:163:13:0610:2233:43
10:52
#25826
20M
20.00 mi14:35:023:27:5210:2414:46
10:53
#25731
21M
21.00 mi14:46:303:39:2010:2711:28
11:28
#25640
35K
21.75 mi14:54:303:47:2010:288:00
10:42
#25602
23M
23.00 mi15:08:264:01:1610:3013:56
11:09
#25558
24M
24.00 mi15:19:134:12:0310:3110:47
10:47
#25513
40K
24.85 mi15:28:484:21:3810:329:35
11:13
#25481
25.2M
25.20 mi15:33:484:26:3810:355:00
14:30
#25551
FINISH
26.22 mi15:45:474:38:3710:3911:59
11:46
#25646
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF70-74Seg. OverallSeg. FemalesSeg. F70-74
5K3.11 mi3.11 mi27904118201182025822(Top 89%)10626(Top 84%)10626(Top 13119%)
10K6.21 mi3.10 mi27057+84711322+49811322+49826110(Top 90%)10780(Top 86%)10780(Top 13309%)
15K9.32 mi3.11 mi26624+43311071+25111071+25125822(Top 89%)10626(Top 84%)10626(Top 13119%)
20K12.43 mi3.11 mi26287+33710894+17710894+17725218(Top 87%)10313(Top 82%)10313(Top 12732%)
HALF13.11 mi0.68 mi26230+5710859+3510859+3525326(Top 87%)10397(Top 83%)10397(Top 12836%)
25K15.53 mi2.42 mi25992+23810735+12410735+12424856(Top 86%)10153(Top 81%)10153(Top 12535%)
30K18.64 mi3.11 mi25826+16610659+7610659+7625061(Top 86%)10403(Top 83%)10403(Top 12843%)
20M20.00 mi1.36 mi25731+9510635+2410635+2424676(Top 85%)10277(Top 82%)10277(Top 12688%)
21M21.00 mi1.00 mi25640+9110601+3410601+3424137(Top 83%)10055(Top 80%)10055(Top 12414%)
35K21.75 mi0.75 mi25602+3810592+910592+924698(Top 85%)10364(Top 82%)10364(Top 12795%)
23M23.00 mi1.25 mi25558+4410586+610586+624776(Top 85%)10465(Top 83%)10465(Top 12920%)
24M24.00 mi1.00 mi25513+4510578+810578+824692(Top 85%)10443(Top 83%)10443(Top 12893%)
40K24.85 mi0.85 mi25481+3210576+210576+224668(Top 85%)10475(Top 83%)10475(Top 12932%)
25.2M25.20 mi0.35 mi25551-7010620-4410620-4427616(Top 95%)11936(Top 95%)11936(Top 14736%)
FINISH26.22 mi1.02 mi25646-9510683-6310683-6327177(Top 94%)11726(Top 93%)11726(Top 14477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
Γ—21
+97ft-345ft

Overall

25822

Females

10626

F70-74

10626

5K→10K

3.1 - 6.2 mi

Top 90%
Γ—5
+79ft-138ft

Overall

26110

Females

10780

F70-74

10780

10K→15K

6.2 - 9.3 mi

Top 89%
Γ—3
+67ft-78ft

Overall

25822

Females

10626

F70-74

10626

15K→20K

9.3 - 12.4 mi

Top 87%
Γ—5
+106ft-86ft

Overall

25218

Females

10313

F70-74

10313

20K→HALF

12.4 - 13.1 mi

Top 87%
Γ—2
+19ft-37ft

Overall

25326

Females

10397

F70-74

10397

HALF→25K

13.1 - 15.5 mi

Top 86%
Γ—4
+66ft-88ft

Overall

24856

Females

10153

F70-74

10153

25K→30K

15.5 - 18.6 mi

Top 86%
Γ—9
+181ft-148ft

Overall

25061

Females

10403

F70-74

10403

30K→20M

18.6 - 20.0 mi

Top 85%
Γ—5
+64ft-50ft

Overall

24676

Females

10277

F70-74

10277

20M→21M

20.0 - 21.0 mi

Top 83%
Γ—8
+106ft-24ft

Overall

24137

Females

10055

F70-74

10055

21M→35K

21.0 - 21.8 mi

Top 85%
Γ—7
+17ft-86ft

Overall

24698

Females

10364

F70-74

10364

35K→23M

21.8 - 23.0 mi

Top 85%
Γ—5
+23ft-63ft

Overall

24776

Females

10465

F70-74

10465

23M→24M

23.0 - 24.0 mi

Top 85%
Γ—6
+12ft-82ft

Overall

24692

Females

10443

F70-74

10443

24M→40K

24.0 - 24.9 mi

Top 85%
Γ—1
+6ft-20ft

Overall

24668

Females

10475

F70-74

10475

40K→25.2M

24.9 - 25.2 mi

Top 95%
Γ—1
+13ft-16ft

Overall

27616

Females

11936

F70-74

11936

25.2M→FINISH

25.2 - 26.2 mi

Top 94%
Γ—2
+22ft-21ft

Overall

27177

Females

11726

F70-74

11726

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2627
Passed By
369
Net Change
+2258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#27904
5K β†’ 10K8536+847#27904#27057
10K β†’ 15K4429+433#27057#26624
15K β†’ 20K3447+337#26624#26287
20K β†’ HALF603+57#26287#26230
HALF β†’ 25K2424+238#26230#25992
25K β†’ 30K21549+166#25992#25826
30K β†’ 20M11318+95#25826#25731
20M β†’ 21M10817+91#25731#25640
21M β†’ 35K5315+38#25640#25602
35K β†’ 23M6824+44#25602#25558
23M β†’ 24M5914+45#25558#25513
24M β†’ 40K5220+32#25513#25481
40K β†’ 25.2M171-70#25481#25551
25.2M β†’ FINISH17112-95#25551#25646
TOTALS2627369+2258
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing