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BOSTON MARATHON 2026

Heather Mccarthy

Bib: 11855•F

NY

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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
Top 42%
Age Group (F45-49)
#0 / 1786
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
25:11
3.11 mi
Rank: #17652
Start → 5K
25:11 | 8:07/mi
10K
50:36
6.21 mi
Rank: #18052 (-400)
5K → 10K
25:25 | 8:11/mi
15K
1:16:13
9.32 mi
Rank: #18257 (-205)
10K → 15K
25:37 | 8:15/mi
20K
1:42:35
12.43 mi
Rank: #18498 (-241)
15K → 20K
26:22 | 8:30/mi
HALF
1:48:13
13.11 mi
Rank: #18511 (-13)
20K → HALF
5:38 | 8:16/mi
25K
2:09:10
15.53 mi
Rank: #18617 (-106)
HALF → 25K
20:57 | 8:39/mi
30K
2:36:46
18.64 mi
Rank: #18674 (-57)
25K → 30K
27:36 | 8:54/mi
20M
2:48:44
20.00 mi
Rank: #18603 (+71)
30K → 20M
11:58 | 8:49/mi
21M
2:58:04
21.00 mi
Rank: #18539 (+64)
20M → 21M
9:20 | 9:20/mi
35K
3:04:21
21.75 mi
Rank: #18475 (+64)
21M → 35K
6:17 | 8:24/mi
23M
3:15:30
23.00 mi
Rank: #18446 (+29)
35K → 23M
11:09 | 8:55/mi
24M
3:23:44
24.00 mi
Rank: #18307 (+139)
23M → 24M
8:14 | 8:14/mi
40K
3:30:59
24.85 mi
Rank: #18204 (+103)
24M → 40K
7:15 | 8:29/mi
25.2M
3:34:09
25.20 mi
Rank: #18157 (+47)
40K → 25.2M
3:10 | 9:11/mi
FINISH
3:42:23
26.22 mi
Rank: #18047 (+110)
25.2M → FINISH
8:14 | 8:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:13
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:54:10
Pace8:43 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:0425:118:0725:11
8:07
-
10K
6.21 mi11:10:2950:368:0925:25
8:11
+0:04
15K
9.32 mi11:36:061:16:138:1125:37
8:15
+0:04
20K
12.43 mi12:02:281:42:358:1626:22
8:30
+0:15
HALF
13.11 mi12:08:061:48:138:165:38
8:16
-0:14
25K
15.53 mi12:29:032:09:108:1920:57
8:39
+0:23
30K
18.64 mi12:56:392:36:468:2527:36
8:54
+0:15
20M
20.00 mi13:08:372:48:448:2711:58
8:49
-0:05
21M
21.00 mi13:17:572:58:048:299:20
9:20
+0:31
35K
21.75 mi13:24:143:04:218:296:17
8:24
-0:56
23M
23.00 mi13:35:233:15:308:3111:09
8:55
+0:31
24M
24.00 mi13:43:373:23:448:308:14
8:14
-0:41
40K
24.85 mi13:50:523:30:598:307:15
8:29
+0:15
25.2M
25.20 mi13:54:023:34:098:303:10
9:11
+0:42
FINISH
26.22 mi14:02:163:42:238:308:14
8:05
-1:06

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

8:05 /mi

Average Pace

8:29 /mi

Slowest Pace

9:20 /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

2:51:08

77% of race

Time at Steady Pace

51:15

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:29 /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 mi10:45:0425:118:0725:11
8:07
#17652
10K
6.21 mi11:10:2950:368:0925:25
8:11
#18052
15K
9.32 mi11:36:061:16:138:1125:37
8:15
#18257
20K
12.43 mi12:02:281:42:358:1626:22
8:30
#18498
HALF
13.11 mi12:08:061:48:138:165:38
8:16
#18511
25K
15.53 mi12:29:032:09:108:1920:57
8:39
#18617
30K
18.64 mi12:56:392:36:468:2527:36
8:54
#18674
20M
20.00 mi13:08:372:48:448:2711:58
8:49
#18603
21M
21.00 mi13:17:572:58:048:299:20
9:20
#18539
35K
21.75 mi13:24:143:04:218:296:17
8:24
#18475
23M
23.00 mi13:35:233:15:308:3111:09
8:55
#18446
24M
24.00 mi13:43:373:23:448:308:14
8:14
#18307
40K
24.85 mi13:50:523:30:598:307:15
8:29
#18204
25.2M
25.20 mi13:54:023:34:098:303:10
9:11
#18157
FINISH
26.22 mi14:02:163:42:238:308:14
8:05
#18047
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi176526304630418657(Top 64%)6845(Top 54%)6845(Top 383%)
10K6.21 mi3.10 mi18052-4006528-2246528-22418474(Top 64%)6730(Top 54%)6730(Top 377%)
15K9.32 mi3.11 mi18257-2056631-1036631-10318657(Top 64%)6845(Top 54%)6845(Top 383%)
20K12.43 mi3.11 mi18498-2416760-1296760-12919230(Top 66%)7197(Top 57%)7197(Top 403%)
HALF13.11 mi0.68 mi18511-136776-166776-1618835(Top 65%)6957(Top 55%)6957(Top 390%)
25K15.53 mi2.42 mi18617-1066850-746850-7419395(Top 67%)7341(Top 58%)7341(Top 411%)
30K18.64 mi3.11 mi18674-576917-676917-6719000(Top 65%)7208(Top 57%)7208(Top 404%)
20M20.00 mi1.36 mi18603+716898+196898+1918040(Top 62%)6781(Top 54%)6781(Top 380%)
21M21.00 mi1.00 mi18539+646875+236875+2317795(Top 61%)6680(Top 53%)6680(Top 374%)
35K21.75 mi0.75 mi18475+646853+226853+2217067(Top 59%)6375(Top 51%)6375(Top 357%)
23M23.00 mi1.25 mi18446+296851+26851+218065(Top 62%)6992(Top 56%)6992(Top 391%)
24M24.00 mi1.00 mi18307+1396797+546797+5415329(Top 53%)5527(Top 44%)5527(Top 309%)
40K24.85 mi0.85 mi18204+1036756+416756+4115597(Top 54%)5743(Top 46%)5743(Top 322%)
25.2M25.20 mi0.35 mi18157+476740+166740+1615799(Top 54%)5872(Top 47%)5872(Top 329%)
FINISH26.22 mi1.02 mi18047+1106688+526688+5215718(Top 54%)5804(Top 46%)5804(Top 325%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21
+97ft-345ft

Overall

18657

Females

6845

F45-49

6845

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18474

Females

6730

F45-49

6730

10K→15K

6.2 - 9.3 mi

Top 64%
×3
+67ft-78ft

Overall

18657

Females

6845

F45-49

6845

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19230

Females

7197

F45-49

7197

20K→HALF

12.4 - 13.1 mi

Top 65%
×2
+19ft-37ft

Overall

18835

Females

6957

F45-49

6957

HALF→25K

13.1 - 15.5 mi

Top 67%
×4
+66ft-88ft

Overall

19395

Females

7341

F45-49

7341

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

19000

Females

7208

F45-49

7208

30K→20M

18.6 - 20.0 mi

Top 62%
×5
+64ft-50ft

Overall

18040

Females

6781

F45-49

6781

20M→21M

20.0 - 21.0 mi

Top 61%
×8
+106ft-24ft

Overall

17795

Females

6680

F45-49

6680

21M→35K

21.0 - 21.8 mi

Top 59%
×7
+17ft-86ft

Overall

17067

Females

6375

F45-49

6375

35K→23M

21.8 - 23.0 mi

Top 62%
×5
+23ft-63ft

Overall

18065

Females

6992

F45-49

6992

23M→24M

23.0 - 24.0 mi

Top 53%
×6
+12ft-82ft

Overall

15329

Females

5527

F45-49

5527

24M→40K

24.0 - 24.9 mi

Top 54%
×1
+6ft-20ft

Overall

15597

Females

5743

F45-49

5743

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1
+13ft-16ft

Overall

15799

Females

5872

F45-49

5872

25.2M→FINISH

25.2 - 26.2 mi

Top 54%
×2
+22ft-21ft

Overall

15718

Females

5804

F45-49

5804

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1509
Passed By
1904
Net Change
-395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17652
5K → 10K130530-400#17652#18052
10K → 15K112317-205#18052#18257
15K → 20K96337-241#18257#18498
20K → HALF2033-13#18498#18511
HALF → 25K103209-106#18511#18617
25K → 30K158215-57#18617#18674
30K → 20M13059+71#18674#18603
20M → 21M11147+64#18603#18539
21M → 35K8319+64#18539#18475
35K → 23M10677+29#18475#18446
23M → 24M15112+139#18446#18307
24M → 40K12017+103#18307#18204
40K → 25.2M536+47#18204#18157
25.2M → FINISH13626+110#18157#18047
TOTALS15091904-395
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing