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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Rebecca O’callaghan

Bib: 16972 •F •Age: N/A

NY

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 32%
Gender (Female)
#0 / 12578
Top 15%
Age Group (F18-39)
#0 / 5716
Top 28%
Race Day Weather
51°/41°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
22:43
3.11 mi
Rank: #11160
Start → 5K
22:43 | 7:19/mi
10K
45:12
6.21 mi
Rank: #10858 (+302)
5K → 10K
22:29 | 7:15/mi
15K
1:07:43
9.32 mi
Rank: #10735 (+123)
10K → 15K
22:31 | 7:15/mi
20K
1:30:28
12.43 mi
Rank: #10604 (+131)
15K → 20K
22:45 | 7:20/mi
HALF
1:35:24
13.11 mi
Rank: #10601 (+3)
20K → HALF
4:56 | 7:15/mi
25K
1:53:17
15.53 mi
Rank: #10520 (+81)
HALF → 25K
17:53 | 7:23/mi
30K
2:16:16
18.64 mi
Rank: #10151 (+369)
25K → 30K
22:59 | 7:24/mi
20M
2:26:26
20.00 mi
Rank: #10032 (+119)
30K → 20M
10:10 | 7:30/mi
21M
2:34:05
21.00 mi
Rank: #9846 (+186)
20M → 21M
7:39 | 7:39/mi
35K
2:39:31
21.75 mi
Rank: #9782 (+64)
21M → 35K
5:26 | 7:16/mi
23M
2:49:00
23.00 mi
Rank: #9697 (+85)
35K → 23M
9:29 | 7:35/mi
24M
2:56:20
24.00 mi
Rank: #9634 (+63)
23M → 24M
7:20 | 7:20/mi
40K
3:02:50
24.85 mi
Rank: #9607 (+27)
24M → 40K
6:30 | 7:37/mi
25.2M
3:05:32
25.20 mi
Rank: #9534 (+73)
40K → 25.2M
2:42 | 7:50/mi
FINISH
3:12:18
26.22 mi
Rank: #9312 (+222)
25.2M → FINISH
6:46 | 6:39/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:35:24
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:36:54
Pace7:24 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:0922:437:1922:43
7:19
-
10K
6.21 mi11:26:3845:127:1722:29
7:15
-0:04
15K
9.32 mi11:49:091:07:437:1622:31
7:15
0:00
20K
12.43 mi12:11:541:30:287:1722:45
7:20
+0:05
HALF
13.11 mi12:16:501:35:247:174:56
7:15
-0:05
25K
15.53 mi12:34:431:53:177:1817:53
7:23
+0:08
30K
18.64 mi12:57:422:16:167:1922:59
7:24
+0:01
20M
20.00 mi13:07:522:26:267:2010:10
7:30
+0:06
21M
21.00 mi13:15:312:34:057:217:39
7:39
+0:09
35K
21.75 mi13:20:572:39:317:215:26
7:16
-0:23
23M
23.00 mi13:30:262:49:007:219:29
7:35
+0:19
24M
24.00 mi13:37:462:56:207:217:20
7:20
-0:15
40K
24.85 mi13:44:163:02:507:226:30
7:37
+0:17
25.2M
25.20 mi13:46:583:05:327:222:42
7:50
+0:13
FINISH
26.22 mi13:53:443:12:187:216:46
6:39
-1:11

Checkpoint Splits Visualizations

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

📈Pace 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

6:39 /mi

Average Pace

7:20 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

1:02:08

32% of race

Time at Steady Pace

2:10:10

68% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:20 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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 mi11:04:0922:437:1922:43
7:19
#11160
10K
6.21 mi11:26:3845:127:1722:29
7:15
#10858
15K
9.32 mi11:49:091:07:437:1622:31
7:15
#10735
20K
12.43 mi12:11:541:30:287:1722:45
7:20
#10604
HALF
13.11 mi12:16:501:35:247:174:56
7:15
#10601
25K
15.53 mi12:34:431:53:177:1817:53
7:23
#10520
30K
18.64 mi12:57:422:16:167:1922:59
7:24
#10151
20M
20.00 mi13:07:522:26:267:2010:10
7:30
#10032
21M
21.00 mi13:15:312:34:057:217:39
7:39
#9846
35K
21.75 mi13:20:572:39:317:215:26
7:16
#9782
23M
23.00 mi13:30:262:49:007:219:29
7:35
#9697
24M
24.00 mi13:37:462:56:207:217:20
7:20
#9634
40K
24.85 mi13:44:163:02:507:226:30
7:37
#9607
25.2M
25.20 mi13:46:583:05:327:222:42
7:50
#9534
FINISH
26.22 mi13:53:443:12:187:216:46
6:39
#9312
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111602441244110545(Top 36%)2233(Top 18%)2233(Top 39%)
10K6.21 mi3.10 mi10858+3022324+1172324+11710603(Top 37%)2207(Top 18%)2207(Top 39%)
15K9.32 mi3.11 mi10735+1232290+342290+3410545(Top 36%)2233(Top 18%)2233(Top 39%)
20K12.43 mi3.11 mi10604+1312265+252265+2510394(Top 36%)2243(Top 18%)2243(Top 39%)
HALF13.11 mi0.68 mi10601+32262+32262+310680(Top 37%)2304(Top 18%)2304(Top 40%)
25K15.53 mi2.42 mi10520+812255+72255+710360(Top 36%)2308(Top 18%)2308(Top 40%)
30K18.64 mi3.11 mi10151+3692113+1422113+1428853(Top 31%)1751(Top 14%)1751(Top 31%)
20M20.00 mi1.36 mi10032+1192076+372076+379036(Top 31%)1923(Top 15%)1923(Top 34%)
21M21.00 mi1.00 mi9846+1862003+732003+737549(Top 26%)1432(Top 11%)1432(Top 25%)
35K21.75 mi0.75 mi9782+641992+111992+119054(Top 31%)2039(Top 16%)2039(Top 36%)
23M23.00 mi1.25 mi9697+851985+71985+79441(Top 33%)2297(Top 18%)2297(Top 40%)
24M24.00 mi1.00 mi9634+631972+131972+138871(Top 31%)2108(Top 17%)2108(Top 37%)
40K24.85 mi0.85 mi9607+271985-131985-139613(Top 33%)2558(Top 20%)2558(Top 45%)
25.2M25.20 mi0.35 mi9534+731963+221963+227335(Top 25%)1573(Top 13%)1573(Top 28%)
FINISH26.22 mi1.02 mi9312+2221900+631900+635091(Top 18%)833(Top 7%)833(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21
+97ft-345ft

Overall

10545

Females

2233

F18-39

2233

5K→10K

3.1 - 6.2 mi

Top 37%
×5
+79ft-138ft

Overall

10603

Females

2207

F18-39

2207

10K→15K

6.2 - 9.3 mi

Top 36%
×3
+67ft-78ft

Overall

10545

Females

2233

F18-39

2233

15K→20K

9.3 - 12.4 mi

Top 36%
×5
+106ft-86ft

Overall

10394

Females

2243

F18-39

2243

20K→HALF

12.4 - 13.1 mi

Top 37%
×2
+19ft-37ft

Overall

10680

Females

2304

F18-39

2304

HALF→25K

13.1 - 15.5 mi

Top 36%
×4
+66ft-88ft

Overall

10360

Females

2308

F18-39

2308

25K→30K

15.5 - 18.6 mi

Top 31%
×9
+181ft-148ft

Overall

8853

Females

1751

F18-39

1751

30K→20M

18.6 - 20.0 mi

Top 31%
×5
+64ft-50ft

Overall

9036

Females

1923

F18-39

1923

20M→21M

20.0 - 21.0 mi

Top 26%
×8
+106ft-24ft

Overall

7549

Females

1432

F18-39

1432

21M→35K

21.0 - 21.8 mi

Top 31%
×7
+17ft-86ft

Overall

9054

Females

2039

F18-39

2039

35K→23M

21.8 - 23.0 mi

Top 33%
×5
+23ft-63ft

Overall

9441

Females

2297

F18-39

2297

23M→24M

23.0 - 24.0 mi

Top 31%
×6
+12ft-82ft

Overall

8871

Females

2108

F18-39

2108

24M→40K

24.0 - 24.9 mi

Top 33%
×1
+6ft-20ft

Overall

9613

Females

2558

F18-39

2558

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1
+13ft-16ft

Overall

7335

Females

1573

F18-39

1573

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
×2
+22ft-21ft

Overall

5091

Females

833

F18-39

833

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2517*
Passed By
669
Net Change
+1848
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11160
5K → 10K426*124+302#11160#10858
10K → 15K219*96+123#10858#10735
15K → 20K227*96+131#10735#10604
20K → HALF3330+3#10604#10601
HALF → 25K16382+81#10601#10520
25K → 30K403*34+369#10520#10151
30K → 20M14425+119#10151#10032
20M → 21M190*4+186#10032#9846
21M → 35K8420+64#9846#9782
35K → 23M14257+85#9782#9697
23M → 24M9734+63#9697#9634
24M → 40K8659+27#9634#9607
40K → 25.2M763+73#9607#9534
25.2M → FINISH227*5+222#9534#9312
TOTALS2517*669+1848

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race 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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