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BOSTON MARATHON 2025

Claire Spring

Bib: 26926•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:12/mi
28:36
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
56:59
↑ 79↓ 1380.4%
15K· 9.32 mi
8:48/mi
1:24:19
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:51:20
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:57:05
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:18:37
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:47:18
↑ 181↓ 1480.2%
20M
9:18/mi
2:59:56
↑ 64↓ 500.2%
21M
9:47/mi
3:09:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:44/mi
3:16:15
↑ 17↓ 861.7%
23M
9:11/mi
3:27:45
↑ 23↓ 630.6%
24M
9:03/mi
3:36:48
↓ 821.3%
40K· 24.85 mi
9:20/mi
3:44:47
↓ 200.3%
25.2M
10:18/mi
3:48:20
↑ 13↓ 160.2%
Finish· 26.22 mi
8:48/mi
3:57:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:05
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:00:13
Pace9:10 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:3428:369:1228:36
9:12
-
10K
6.21 mi12:12:5756:599:1028:23
9:08
-0:04
15K
9.32 mi12:40:171:24:199:0327:20
8:48
-0:20
20K
12.43 mi13:07:181:51:208:5827:01
8:42
-0:06
Half
13.11 mi13:13:031:57:058:565:45
8:26
-0:16
25K
15.53 mi13:34:352:18:378:5521:32
8:53
+0:27
30K
18.64 mi14:03:162:47:188:5828:41
9:14
+0:21
20M
20.00 mi14:15:542:59:569:0012:38
9:18
+0:04
21M
21.00 mi14:25:413:09:439:029:47
9:47
+0:29
35K
21.75 mi14:32:133:16:159:016:32
8:44
-1:03
23M
23.00 mi14:43:433:27:459:0211:30
9:11
+0:27
24M
24.00 mi14:52:463:36:489:029:03
9:03
-0:08
40K
24.85 mi15:00:453:44:479:037:59
9:20
+0:17
25.2M
25.20 mi15:04:183:48:209:043:33
10:18
+0:58
Finish
26.22 mi15:13:163:57:189:038:58
8:48
-1:30

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

8:26 /mi

Average Pace

9:03 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:08

41% of race

Time at Steady Pace

2:06:50

53% of race

Time at Slower Pace

13:20

6% of race

Average Pace: 9:03 /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 mi11:44:3428:369:1228:36
9:12
#23252
10K
6.21 mi12:12:5756:599:1028:23
9:08
#23104
15K
9.32 mi12:40:171:24:199:0327:20
8:48
#22478
20K
12.43 mi13:07:181:51:208:5827:01
8:42
#21745
Half
13.11 mi13:13:031:57:058:565:45
8:26
#21611
25K
15.53 mi13:34:352:18:378:5521:32
8:53
#21221
30K
18.64 mi14:03:162:47:188:5828:41
9:14
#20748
20M
20.00 mi14:15:542:59:569:0012:38
9:18
#20537
21M
21.00 mi14:25:413:09:439:029:47
9:47
#20359
35K
21.75 mi14:32:133:16:159:016:32
8:44
#20232
23M
23.00 mi14:43:433:27:459:0211:30
9:11
#20080
24M
24.00 mi14:52:463:36:489:029:03
9:03
#19971
40K
24.85 mi15:00:453:44:479:037:59
9:20
#19889
25.2M
25.20 mi15:04:183:48:209:043:33
10:18
#19866
Finish
26.22 mi15:13:163:57:189:038:58
8:48
#19804
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi232529303930321014(Top 74%)8011(Top 66%)8011(Top 146%)
10K6.21 mi3.10 mi23104+1489206+979206+9722949(Top 81%)9102(Top 74%)9102(Top 166%)
15K9.32 mi3.11 mi22478+6268846+3608846+36021014(Top 74%)8011(Top 66%)8011(Top 146%)
20K12.43 mi3.11 mi21745+7338461+3858461+38519403(Top 68%)7139(Top 58%)7139(Top 131%)
Half13.11 mi0.68 mi21611+1348386+758386+7518810(Top 66%)6804(Top 56%)6804(Top 124%)
25K15.53 mi2.42 mi21221+3908166+2208166+22019360(Top 68%)7183(Top 59%)7183(Top 131%)
30K18.64 mi3.11 mi20748+4737953+2137953+21318810(Top 66%)7019(Top 57%)7019(Top 128%)
20M20.00 mi1.36 mi20537+2117848+1057848+10518306(Top 64%)6897(Top 56%)6897(Top 126%)
21M21.00 mi1.00 mi20359+1787776+727776+7217436(Top 61%)6506(Top 53%)6506(Top 119%)
35K21.75 mi0.75 mi20232+1277725+517725+5116959(Top 60%)6329(Top 52%)6329(Top 116%)
23M23.00 mi1.25 mi20080+1527667+587667+5817285(Top 61%)6601(Top 54%)6601(Top 121%)
24M24.00 mi1.00 mi19971+1097625+427625+4217647(Top 62%)6852(Top 56%)6852(Top 125%)
40K24.85 mi0.85 mi19889+827600+257600+2518047(Top 64%)7151(Top 58%)7151(Top 131%)
25.2M25.20 mi0.35 mi19866+237595+57595+518321(Top 65%)7309(Top 60%)7309(Top 134%)
Finish26.22 mi1.02 mi19804+627572+237572+2318072(Top 64%)7129(Top 58%)7129(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21014

Females

8011

F18-39

8011

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

22949

Females

9102

F18-39

9102

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21014

Females

8011

F18-39

8011

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19403

Females

7139

F18-39

7139

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18810

Females

6804

F18-39

6804

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19360

Females

7183

F18-39

7183

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18810

Females

7019

F18-39

7019

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18306

Females

6897

F18-39

6897

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17436

Females

6506

F18-39

6506

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16959

Females

6329

F18-39

6329

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17285

Females

6601

F18-39

6601

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17647

Females

6852

F18-39

6852

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18047

Females

7151

F18-39

7151

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18321

Females

7309

F18-39

7309

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18072

Females

7129

F18-39

7129

Passing Analysis

Category:
Athletes Passed
3772
Passed By
324
Net Change
+3448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23252
5K → 10K305157+148#23252#23104
10K → 15K6326+626#23104#22478
15K → 20K7374+733#22478#21745
20K → Half1351+134#21745#21611
Half → 25K40010+390#21611#21221
25K → 30K49017+473#21221#20748
30K → 20M22514+211#20748#20537
20M → 21M19416+178#20537#20359
21M → 35K1303+127#20359#20232
35K → 23M16513+152#20232#20080
23M → 24M12213+109#20080#19971
24M → 40K11331+82#19971#19889
40K → 25.2M3512+23#19889#19866
25.2M → Finish8927+62#19866#19804
TOTALS3772324+3448
📊

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