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BOSTON MARATHON 2025

Claire Middleton

Bib: 9930•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Division (F18-39)
#0 / 5469
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:28
Rank: #9758
Start → 5K
22:28 | 7:14/mi
10K· 6.21 mi
44:46
Rank: #9502 (+256)
5K → 10K
22:18 | 7:11/mi
15K· 9.32 mi
1:07:19
Rank: #9522 (-20)
10K → 15K
22:33 | 7:15/mi
20K· 12.43 mi
1:30:02
Rank: #9381 (+141)
15K → 20K
22:43 | 7:19/mi
Half· 13.11 mi
1:34:56
Rank: #9360 (+21)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:52:52
Rank: #9277 (+83)
Half → 25K
17:56 | 7:24/mi
30K· 18.64 mi
2:17:02
Rank: #9281 (-4)
25K → 30K
24:10 | 7:47/mi
20M
2:27:36
Rank: #9234 (+47)
30K → 20M
10:34 | 7:47/mi
21M
2:36:30
Rank: #9428 (-194)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:42:07
Rank: #9371 (+57)
21M → 35K
5:37 | 7:30/mi
23M
2:51:52
Rank: #9253 (+118)
35K → 23M
9:45 | 7:47/mi
24M
2:59:20
Rank: #9146 (+107)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
3:05:50
Rank: #9041 (+105)
24M → 40K
6:30 | 7:36/mi
25.2M
3:08:40
Rank: #8990 (+51)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:16:05
Rank: #8888 (+102)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:56
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:41:09
Pace7:43 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2622:287:1422:28
7:14
-
10K
6.21 mi11:10:4444:467:1222:18
7:11
-0:03
15K
9.32 mi11:33:171:07:197:1322:33
7:15
+0:04
20K
12.43 mi11:56:001:30:027:1522:43
7:19
+0:04
Half
13.11 mi12:00:541:34:567:144:54
7:11
-0:08
25K
15.53 mi12:18:501:52:527:1617:56
7:24
+0:13
30K
18.64 mi12:43:002:17:027:2124:10
7:47
+0:23
20M
20.00 mi12:53:342:27:367:2310:34
7:47
0:00
21M
21.00 mi13:02:282:36:307:278:54
8:54
+1:07
35K
21.75 mi13:08:052:42:077:275:37
7:30
-1:24
23M
23.00 mi13:17:502:51:527:289:45
7:47
+0:17
24M
24.00 mi13:25:182:59:207:287:28
7:28
-0:19
40K
24.85 mi13:31:483:05:507:296:30
7:36
+0:08
25.2M
25.20 mi13:34:383:08:407:292:50
8:13
+0:37
Finish
26.22 mi13:42:033:16:057:297:25
7:17
-0:56

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

7:11 /mi

Average Pace

7:29 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:40

25% of race

Time at Steady Pace

1:30:12

46% of race

Time at Slower Pace

56:13

29% of race

Average Pace: 7:29 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:48:2622:287:1422:28
7:14
#9758
10K
6.21 mi11:10:4444:467:1222:18
7:11
#9502
15K
9.32 mi11:33:171:07:197:1322:33
7:15
#9522
20K
12.43 mi11:56:001:30:027:1522:43
7:19
#9381
Half
13.11 mi12:00:541:34:567:144:54
7:11
#9360
25K
15.53 mi12:18:501:52:527:1617:56
7:24
#9277
30K
18.64 mi12:43:002:17:027:2124:10
7:47
#9281
20M
20.00 mi12:53:342:27:367:2310:34
7:47
#9234
21M
21.00 mi13:02:282:36:307:278:54
8:54
#9428
35K
21.75 mi13:08:052:42:077:275:37
7:30
#9371
23M
23.00 mi13:17:502:51:527:289:45
7:47
#9253
24M
24.00 mi13:25:182:59:207:287:28
7:28
#9146
40K
24.85 mi13:31:483:05:507:296:30
7:36
#9041
25.2M
25.20 mi13:34:383:08:407:292:50
8:13
#8990
Finish
26.22 mi13:42:033:16:057:297:25
7:17
#8888
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9758169716979645(Top 34%)1726(Top 14%)1726(Top 32%)
10K6.21 mi3.10 mi9502+2561578+1191578+1199308(Top 33%)1517(Top 12%)1517(Top 28%)
15K9.32 mi3.11 mi9522-201611-331611-339645(Top 34%)1726(Top 14%)1726(Top 32%)
20K12.43 mi3.11 mi9381+1411590+211590+219148(Top 32%)1590(Top 13%)1590(Top 29%)
Half13.11 mi0.68 mi9360+211583+71583+79011(Top 32%)1512(Top 12%)1512(Top 28%)
25K15.53 mi2.42 mi9277+831575+81575+89139(Top 32%)1695(Top 14%)1695(Top 31%)
30K18.64 mi3.11 mi9281-41634-591634-599770(Top 34%)2172(Top 18%)2172(Top 40%)
20M20.00 mi1.36 mi9234+471639-51639-58885(Top 31%)1924(Top 16%)1924(Top 35%)
21M21.00 mi1.00 mi9428-1941766-1271766-12712927(Top 46%)4070(Top 33%)4070(Top 74%)
35K21.75 mi0.75 mi9371+571763+31763+38707(Top 31%)1986(Top 16%)1986(Top 36%)
23M23.00 mi1.25 mi9253+1181750+131750+138510(Top 30%)2041(Top 17%)2041(Top 37%)
24M24.00 mi1.00 mi9146+1071731+191731+197494(Top 26%)1662(Top 14%)1662(Top 30%)
40K24.85 mi0.85 mi9041+1051725+61725+67460(Top 26%)1738(Top 14%)1738(Top 32%)
25.2M25.20 mi0.35 mi8990+511721+41721+47225(Top 25%)1741(Top 14%)1741(Top 32%)
Finish26.22 mi1.02 mi8888+1021720+11720+17643(Top 27%)1915(Top 16%)1915(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9645

Females

1726

F18-39

1726

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

9308

Females

1517

F18-39

1517

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9645

Females

1726

F18-39

1726

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9148

Females

1590

F18-39

1590

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9011

Females

1512

F18-39

1512

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9139

Females

1695

F18-39

1695

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9770

Females

2172

F18-39

2172

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8885

Females

1924

F18-39

1924

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12927

Females

4070

F18-39

4070

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8707

Females

1986

F18-39

1986

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8510

Females

2041

F18-39

2041

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7494

Females

1662

F18-39

1662

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7460

Females

1738

F18-39

1738

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7225

Females

1741

F18-39

1741

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7643

Females

1915

F18-39

1915

Passing Analysis

Category:
Athletes Passed
2120
Passed By
1250
Net Change
+870
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9758
5K → 10K379123+256#9758#9502
10K → 15K157177-20#9502#9522
15K → 20K249108+141#9522#9381
20K → Half3413+21#9381#9360
Half → 25K190107+83#9360#9277
25K → 30K228232-4#9277#9281
30K → 20M12073+47#9281#9234
20M → 21M42236-194#9234#9428
21M → 35K8730+57#9428#9371
35K → 23M16143+118#9371#9253
23M → 24M14134+107#9253#9146
24M → 40K13732+105#9146#9041
40K → 25.2M6413+51#9041#8990
25.2M → Finish13129+102#8990#8888
TOTALS21201250+870
📊

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