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BOSTON MARATHON 2025

Chelsea Carruthers

Bib: 17769•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:39
Rank: #10279
Start → 5K
22:39 | 7:17/mi
10K· 6.21 mi
44:52
Rank: #9634 (+645)
5K → 10K
22:13 | 7:09/mi
15K· 9.32 mi
1:07:15
Rank: #9443 (+191)
10K → 15K
22:23 | 7:12/mi
20K· 12.43 mi
1:29:49
Rank: #9233 (+210)
15K → 20K
22:34 | 7:16/mi
Half· 13.11 mi
1:34:45
Rank: #9239 (-6)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:52:29
Rank: #9036 (+203)
Half → 25K
17:44 | 7:19/mi
30K· 18.64 mi
2:15:52
Rank: #8737 (+299)
25K → 30K
23:23 | 7:32/mi
20M
2:26:05
Rank: #8556 (+181)
30K → 20M
10:13 | 7:31/mi
21M
2:33:53
Rank: #8364 (+192)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:39:16
Rank: #8252 (+112)
21M → 35K
5:23 | 7:12/mi
23M
2:48:30
Rank: #8031 (+221)
35K → 23M
9:14 | 7:22/mi
24M
2:55:43
Rank: #7895 (+136)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
3:01:56
Rank: #7746 (+149)
24M → 40K
6:13 | 7:16/mi
25.2M
3:04:39
Rank: #7666 (+80)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:11:43
Rank: #7524 (+142)
25.2M → Finish
7:04 | 6:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:45
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:36:58
Pace7:24 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:5722:397:1722:39
7:17
-
10K
6.21 mi11:35:1044:527:1322:13
7:09
-0:08
15K
9.32 mi11:57:331:07:157:1322:23
7:12
+0:03
20K
12.43 mi12:20:071:29:497:1422:34
7:16
+0:04
Half
13.11 mi12:25:031:34:457:144:56
7:14
-0:02
25K
15.53 mi12:42:471:52:297:1417:44
7:19
+0:05
30K
18.64 mi13:06:102:15:527:1723:23
7:32
+0:13
20M
20.00 mi13:16:232:26:057:1810:13
7:31
-0:01
21M
21.00 mi13:24:112:33:537:207:48
7:48
+0:17
35K
21.75 mi13:29:342:39:167:195:23
7:12
-0:36
23M
23.00 mi13:38:482:48:307:209:14
7:22
+0:10
24M
24.00 mi13:46:012:55:437:197:13
7:13
-0:09
40K
24.85 mi13:52:143:01:567:196:13
7:16
+0:03
25.2M
25.20 mi13:54:573:04:397:202:43
7:53
+0:37
Finish
26.22 mi14:02:013:11:437:197:04
6:56
-0:57

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

6:56 /mi

Average Pace

7:19 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:12

95% of race

Time at Steady Pace

10:31

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:19 /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 mi11:12:5722:397:1722:39
7:17
#10279
10K
6.21 mi11:35:1044:527:1322:13
7:09
#9634
15K
9.32 mi11:57:331:07:157:1322:23
7:12
#9443
20K
12.43 mi12:20:071:29:497:1422:34
7:16
#9233
Half
13.11 mi12:25:031:34:457:144:56
7:14
#9239
25K
15.53 mi12:42:471:52:297:1417:44
7:19
#9036
30K
18.64 mi13:06:102:15:527:1723:23
7:32
#8737
20M
20.00 mi13:16:232:26:057:1810:13
7:31
#8556
21M
21.00 mi13:24:112:33:537:207:48
7:48
#8364
35K
21.75 mi13:29:342:39:167:195:23
7:12
#8252
23M
23.00 mi13:38:482:48:307:209:14
7:22
#8031
24M
24.00 mi13:46:012:55:437:197:13
7:13
#7895
40K
24.85 mi13:52:143:01:567:196:13
7:16
#7746
25.2M
25.20 mi13:54:573:04:397:202:43
7:53
#7666
Finish
26.22 mi14:02:013:11:437:197:04
6:56
#7524
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10279193419349178(Top 32%)1498(Top 12%)1498(Top 27%)
10K6.21 mi3.10 mi9634+6451629+3051629+3059089(Top 32%)1408(Top 12%)1408(Top 26%)
15K9.32 mi3.11 mi9443+1911572+571572+579178(Top 32%)1498(Top 12%)1498(Top 27%)
20K12.43 mi3.11 mi9233+2101518+541518+548736(Top 31%)1413(Top 12%)1413(Top 26%)
Half13.11 mi0.68 mi9239-61524-61524-69403(Top 33%)1646(Top 13%)1646(Top 30%)
25K15.53 mi2.42 mi9036+2031467+571467+578473(Top 30%)1402(Top 11%)1402(Top 26%)
30K18.64 mi3.11 mi8737+2991390+771390+777943(Top 28%)1371(Top 11%)1371(Top 25%)
20M20.00 mi1.36 mi8556+1811356+341356+347149(Top 25%)1196(Top 10%)1196(Top 22%)
21M21.00 mi1.00 mi8364+1921315+411315+416219(Top 22%)997(Top 8%)997(Top 18%)
35K21.75 mi0.75 mi8252+1121287+281287+286613(Top 23%)1137(Top 9%)1137(Top 21%)
23M23.00 mi1.25 mi8031+2211254+331254+335919(Top 21%)991(Top 8%)991(Top 18%)
24M24.00 mi1.00 mi7895+1361241+131241+135953(Top 21%)1054(Top 9%)1054(Top 19%)
40K24.85 mi0.85 mi7746+1491216+251216+255522(Top 19%)948(Top 8%)948(Top 17%)
25.2M25.20 mi0.35 mi7666+801203+131203+135380(Top 19%)1010(Top 8%)1010(Top 18%)
Finish26.22 mi1.02 mi7524+1421183+201183+205345(Top 19%)991(Top 8%)991(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

9178

Females

1498

F18-39

1498

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

9089

Females

1408

F18-39

1408

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

9178

Females

1498

F18-39

1498

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8736

Females

1413

F18-39

1413

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

9403

Females

1646

F18-39

1646

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8473

Females

1402

F18-39

1402

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7943

Females

1371

F18-39

1371

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7149

Females

1196

F18-39

1196

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6219

Females

997

F18-39

997

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6613

Females

1137

F18-39

1137

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5919

Females

991

F18-39

991

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5953

Females

1054

F18-39

1054

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5522

Females

948

F18-39

948

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5380

Females

1010

F18-39

1010

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5345

Females

991

F18-39

991

Passing Analysis

Category:
Athletes Passed
3211*
Passed By
456
Net Change
+2755
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10279
5K → 10K698*53+645#10279#9634
10K → 15K27079+191#9634#9443
15K → 20K28272+210#9443#9233
20K → Half3036-6#9233#9239
Half → 25K25855+203#9239#9036
25K → 30K37778+299#9036#8737
30K → 20M19514+181#8737#8556
20M → 21M20715+192#8556#8364
21M → 35K1219+112#8364#8252
35K → 23M23615+221#8252#8031
23M → 24M14913+136#8031#7895
24M → 40K1556+149#7895#7746
40K → 25.2M833+80#7746#7666
25.2M → Finish1508+142#7666#7524
TOTALS3211*456+2755

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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