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BOSTON MARATHON 2025

Claire Milburn

Bib: 15252•F

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0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:13/mi
22:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:02/mi
44:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:06:01
↑ 67↓ 78
20K· 12.43 mi
7:04/mi
1:27:59
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:32:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:49:51
↑ 66↓ 880.2%
30K· 18.64 mi
7:12/mi
2:12:12
↑ 181↓ 1480.2%
20M
7:14/mi
2:22:02
↑ 64↓ 500.2%
21M
7:32/mi
2:29:34
↑ 106↓ 241.6%
35K· 21.75 mi
6:54/mi
2:34:44
↑ 17↓ 861.7%
23M
7:09/mi
2:43:41
↑ 23↓ 630.6%
24M
7:01/mi
2:50:42
↓ 821.3%
40K· 24.85 mi
6:58/mi
2:56:39
↓ 200.3%
25.2M
7:35/mi
2:59:16
↑ 13↓ 160.2%
Finish· 26.22 mi
6:37/mi
3:06:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:32:43
Pace7:04 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:33:18
Pace7:07 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3822:257:1322:25
7:13
-
10K
6.21 mi11:15:2844:157:0721:50
7:02
-0:11
15K
9.32 mi11:37:141:06:017:0521:46
7:00
-0:02
20K
12.43 mi11:59:121:27:597:0521:58
7:04
+0:04
Half
13.11 mi12:03:561:32:437:044:44
6:56
-0:08
25K
15.53 mi12:21:041:49:517:0417:08
7:04
+0:08
30K
18.64 mi12:43:252:12:127:0622:21
7:12
+0:08
20M
20.00 mi12:53:152:22:027:069:50
7:14
+0:02
21M
21.00 mi13:00:472:29:347:077:32
7:32
+0:18
35K
21.75 mi13:05:572:34:447:075:10
6:54
-0:38
23M
23.00 mi13:14:542:43:417:078:57
7:09
+0:15
24M
24.00 mi13:21:552:50:427:077:01
7:01
-0:08
40K
24.85 mi13:27:522:56:397:065:57
6:58
-0:03
25.2M
25.20 mi13:30:292:59:167:072:37
7:35
+0:37
Finish
26.22 mi13:37:143:06:017:066:45
6:37
-0:58

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

6:37 /mi

Average Pace

7:06 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:52

95% of race

Time at Steady Pace

10:09

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:06 /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 mi10:53:3822:257:1322:25
7:13
#9595
10K
6.21 mi11:15:2844:157:0721:50
7:02
#8801
15K
9.32 mi11:37:141:06:017:0521:46
7:00
#8354
20K
12.43 mi11:59:121:27:597:0521:58
7:04
#8038
Half
13.11 mi12:03:561:32:437:044:44
6:56
#7978
25K
15.53 mi12:21:041:49:517:0417:08
7:04
#7737
30K
18.64 mi12:43:252:12:127:0622:21
7:12
#7295
20M
20.00 mi12:53:152:22:027:069:50
7:14
#7082
21M
21.00 mi13:00:472:29:347:077:32
7:32
#6844
35K
21.75 mi13:05:572:34:447:075:10
6:54
#6721
23M
23.00 mi13:14:542:43:417:078:57
7:09
#6511
24M
24.00 mi13:21:552:50:427:077:01
7:01
#6385
40K
24.85 mi13:27:522:56:397:065:57
6:58
#6237
25.2M
25.20 mi13:30:292:59:167:072:37
7:35
#6169
Finish
26.22 mi13:37:143:06:017:066:45
6:37
#5989
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9595162216227670(Top 27%)920(Top 8%)920(Top 17%)
10K6.21 mi3.10 mi8801+7941298+3241298+3248132(Top 29%)1058(Top 9%)1058(Top 19%)
15K9.32 mi3.11 mi8354+4471139+1591139+1597670(Top 27%)920(Top 8%)920(Top 17%)
20K12.43 mi3.11 mi8038+3161038+1011038+1017346(Top 26%)870(Top 7%)870(Top 16%)
Half13.11 mi0.68 mi7978+601018+201018+207187(Top 25%)811(Top 7%)811(Top 15%)
25K15.53 mi2.42 mi7737+241954+64954+646763(Top 24%)792(Top 6%)792(Top 14%)
30K18.64 mi3.11 mi7295+442858+96858+965878(Top 21%)639(Top 5%)639(Top 12%)
20M20.00 mi1.36 mi7082+213824+34824+345440(Top 19%)624(Top 5%)624(Top 11%)
21M21.00 mi1.00 mi6844+238786+38786+384811(Top 17%)565(Top 5%)565(Top 10%)
35K21.75 mi0.75 mi6721+123771+15771+154821(Top 17%)559(Top 5%)559(Top 10%)
23M23.00 mi1.25 mi6511+210745+26745+264618(Top 16%)563(Top 5%)563(Top 10%)
24M24.00 mi1.00 mi6385+126722+23722+234754(Top 17%)654(Top 5%)654(Top 12%)
40K24.85 mi0.85 mi6237+148706+16706+163704(Top 13%)434(Top 4%)434(Top 8%)
25.2M25.20 mi0.35 mi6169+68692+14692+143897(Top 14%)531(Top 4%)531(Top 10%)
Finish26.22 mi1.02 mi5989+180667+25667+253502(Top 12%)430(Top 4%)430(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7670

Females

920

F18-39

920

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8132

Females

1058

F18-39

1058

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7670

Females

920

F18-39

920

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7346

Females

870

F18-39

870

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7187

Females

811

F18-39

811

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6763

Females

792

F18-39

792

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5878

Females

639

F18-39

639

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5440

Females

624

F18-39

624

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4811

Females

565

F18-39

565

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4821

Females

559

F18-39

559

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4618

Females

563

F18-39

563

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4754

Females

654

F18-39

654

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3704

Females

434

F18-39

434

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3897

Females

531

F18-39

531

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3502

Females

430

F18-39

430

Passing Analysis

Category:
Athletes Passed
3749
Passed By
143
Net Change
+3606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9595
5K → 10K81925+794#9595#8801
10K → 15K46215+447#8801#8354
15K → 20K34125+316#8354#8038
20K → Half677+60#8038#7978
Half → 25K25918+241#7978#7737
25K → 30K45816+442#7737#7295
30K → 20M2229+213#7295#7082
20M → 21M2413+238#7082#6844
21M → 35K1241+123#6844#6721
35K → 23M2177+210#6721#6511
23M → 24M1293+126#6511#6385
24M → 40K1535+148#6385#6237
40K → 25.2M735+68#6237#6169
25.2M → Finish1844+180#6169#5989
TOTALS3749143+3606
📊

Passing Visuals

Category:
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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