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BOSTON MARATHON 2025

Heidi Mccarty

Bib: 16075•F

WY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:40
Rank: #10349
Start → 5K
22:40 | 7:18/mi
10K· 6.21 mi
46:05
Rank: #11390 (-1041)
5K → 10K
23:25 | 7:32/mi
15K· 9.32 mi
1:09:29
Rank: #11576 (-186)
10K → 15K
23:24 | 7:32/mi
20K· 12.43 mi
1:32:58
Rank: #11475 (+101)
15K → 20K
23:29 | 7:34/mi
Half· 13.11 mi
1:38:04
Rank: #11479 (-4)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:56:47
Rank: #11488 (-9)
Half → 25K
18:43 | 7:43/mi
30K· 18.64 mi
2:21:38
Rank: #11415 (+73)
25K → 30K
24:51 | 8:00/mi
20M
2:32:49
Rank: #11415
30K → 20M
11:11 | 8:14/mi
21M
2:41:36
Rank: #11429 (-14)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
2:47:59
Rank: #11614 (-185)
21M → 35K
6:23 | 8:32/mi
23M
2:58:27
Rank: #11639 (-25)
35K → 23M
10:28 | 8:22/mi
24M
3:07:09
Rank: #11830 (-191)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
3:14:18
Rank: #11843 (-13)
24M → 40K
7:09 | 8:22/mi
25.2M
3:17:23
Rank: #11827 (+16)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:25:14
Rank: #11762 (+65)
25.2M → Finish
7:51 | 7:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:04
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:47:10
Pace8:11 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1722:407:1822:40
7:18
-
10K
6.21 mi11:19:4246:057:2523:25
7:32
+0:14
15K
9.32 mi11:43:061:09:297:2723:24
7:32
0:00
20K
12.43 mi12:06:351:32:587:2923:29
7:34
+0:02
Half
13.11 mi12:11:411:38:047:295:06
7:29
-0:05
25K
15.53 mi12:30:241:56:477:3118:43
7:43
+0:14
30K
18.64 mi12:55:152:21:387:3624:51
8:00
+0:17
20M
20.00 mi13:06:262:32:497:3811:11
8:14
+0:14
21M
21.00 mi13:15:132:41:367:428:47
8:47
+0:33
35K
21.75 mi13:21:362:47:597:436:23
8:32
-0:15
23M
23.00 mi13:32:042:58:277:4610:28
8:22
-0:10
24M
24.00 mi13:40:463:07:097:488:42
8:42
+0:20
40K
24.85 mi13:47:553:14:187:497:09
8:22
-0:20
25.2M
25.20 mi13:51:003:17:237:503:05
8:56
+0:34
Finish
26.22 mi13:58:513:25:147:507:51
7:42
-1:14

Checkpoints & Pacing

📈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

7:18 /mi

Average Pace

7:50 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:38

61% of race

Time at Steady Pace

36:02

18% of race

Time at Slower Pace

44:34

22% of race

Average Pace: 7:50 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:56:1722:407:1822:40
7:18
#10349
10K
6.21 mi11:19:4246:057:2523:25
7:32
#11390
15K
9.32 mi11:43:061:09:297:2723:24
7:32
#11576
20K
12.43 mi12:06:351:32:587:2923:29
7:34
#11475
Half
13.11 mi12:11:411:38:047:295:06
7:29
#11479
25K
15.53 mi12:30:241:56:477:3118:43
7:43
#11488
30K
18.64 mi12:55:152:21:387:3624:51
8:00
#11415
20M
20.00 mi13:06:262:32:497:3811:11
8:14
#11415
21M
21.00 mi13:15:132:41:367:428:47
8:47
#11429
35K
21.75 mi13:21:362:47:597:436:23
8:32
#11614
23M
23.00 mi13:32:042:58:277:4610:28
8:22
#11639
24M
24.00 mi13:40:463:07:097:488:42
8:42
#11830
40K
24.85 mi13:47:553:14:187:497:09
8:22
#11843
25.2M
25.20 mi13:51:003:17:237:503:05
8:56
#11827
Finish
26.22 mi13:58:513:25:147:507:51
7:42
#11762
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi103491968196812062(Top 42%)2938(Top 24%)2938(Top 54%)
10K6.21 mi3.10 mi11390-10412496-5282496-52812452(Top 44%)3065(Top 25%)3065(Top 56%)
15K9.32 mi3.11 mi11576-1862614-1182614-11812062(Top 42%)2938(Top 24%)2938(Top 54%)
20K12.43 mi3.11 mi11475+1012597+172597+1711247(Top 40%)2605(Top 21%)2605(Top 48%)
Half13.11 mi0.68 mi11479-42600-32600-311572(Top 41%)2731(Top 22%)2731(Top 50%)
25K15.53 mi2.42 mi11488-92644-442644-4411720(Top 41%)2979(Top 24%)2979(Top 54%)
30K18.64 mi3.11 mi11415+732685-412685-4111370(Top 40%)2966(Top 24%)2966(Top 54%)
20M20.00 mi1.36 mi114152730-452730-4512011(Top 42%)3444(Top 28%)3444(Top 63%)
21M21.00 mi1.00 mi11429-142777-472777-4712214(Top 43%)3711(Top 30%)3711(Top 68%)
35K21.75 mi0.75 mi11614-1852893-1162893-11615674(Top 55%)5592(Top 46%)5592(Top 102%)
23M23.00 mi1.25 mi11639-252946-532946-5312433(Top 44%)3963(Top 32%)3963(Top 72%)
24M24.00 mi1.00 mi11830-1913087-1413087-14115751(Top 55%)5769(Top 47%)5769(Top 105%)
40K24.85 mi0.85 mi11843-133127-403127-4012557(Top 44%)4210(Top 34%)4210(Top 77%)
25.2M25.20 mi0.35 mi11827+163134-73134-711513(Top 41%)3750(Top 31%)3750(Top 69%)
Finish26.22 mi1.02 mi11762+653137-33137-310749(Top 38%)3343(Top 27%)3343(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

12062

Females

2938

F18-39

2938

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12452

Females

3065

F18-39

3065

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

12062

Females

2938

F18-39

2938

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11247

Females

2605

F18-39

2605

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11572

Females

2731

F18-39

2731

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

11720

Females

2979

F18-39

2979

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

11370

Females

2966

F18-39

2966

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

12011

Females

3444

F18-39

3444

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12214

Females

3711

F18-39

3711

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15674

Females

5592

F18-39

5592

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12433

Females

3963

F18-39

3963

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15751

Females

5769

F18-39

5769

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12557

Females

4210

F18-39

4210

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11513

Females

3750

F18-39

3750

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10749

Females

3343

F18-39

3343

Passing Analysis

Category:
Athletes Passed
1435
Passed By
2848
Net Change
-1413
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10349
5K → 10K321073-1041#10349#11390
10K → 15K125311-186#11390#11576
15K → 20K228127+101#11576#11475
20K → Half3539-4#11475#11479
Half → 25K153162-9#11479#11488
25K → 30K258185+73#11488#11415
30K → 20M1221220#11415#11415
20M → 21M8498-14#11415#11429
21M → 35K20205-185#11429#11614
35K → 23M100125-25#11614#11639
23M → 24M42233-191#11639#11830
24M → 40K7386-13#11830#11843
40K → 25.2M5034+16#11843#11827
25.2M → Finish11348+65#11827#11762
TOTALS14352848-1413
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing