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BOSTON MARATHON 2025

Carolyn Steele Gray

Bib: 18408•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Female)
#0 / 12228
Top 30%
Masters (Masters Women)
#0 / 6759
Top 15%
Division (F40-44)
#0 / 1718
Top 32%
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
7:46/mi
24:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:12:35
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:37:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:42:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:01:45
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:27:03
↑ 181↓ 1480.2%
20M
8:12/mi
2:38:12
↑ 64↓ 500.2%
21M
8:41/mi
2:46:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:52:51
↑ 17↓ 861.7%
23M
8:11/mi
3:03:06
↑ 23↓ 630.6%
24M
7:52/mi
3:10:58
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:17:49
↓ 200.3%
25.2M
8:39/mi
3:20:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:54/mi
3:28:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:30
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:46:21
Pace8:07 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0524:077:4624:07
7:46
-
10K
6.21 mi11:40:2248:247:4724:17
7:49
+0:03
15K
9.32 mi12:04:331:12:357:4724:11
7:47
-0:02
20K
12.43 mi12:29:081:37:107:4924:35
7:55
+0:08
Half
13.11 mi12:34:281:42:307:495:20
7:49
-0:06
25K
15.53 mi12:53:432:01:457:5019:15
7:56
+0:07
30K
18.64 mi13:19:012:27:037:5325:18
8:09
+0:13
20M
20.00 mi13:30:102:38:127:5511:09
8:12
+0:03
21M
21.00 mi13:38:512:46:537:578:41
8:41
+0:29
35K
21.75 mi13:44:492:52:517:575:58
7:59
-0:42
23M
23.00 mi13:55:043:03:067:5810:15
8:11
+0:12
24M
24.00 mi14:02:563:10:587:577:52
7:52
-0:19
40K
24.85 mi14:09:473:17:497:586:51
8:01
+0:09
25.2M
25.20 mi14:12:463:20:487:582:59
8:39
+0:38
Finish
26.22 mi14:20:493:28:517:588:03
7:54
-0:45

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

7:46 /mi

Average Pace

7:58 /mi

Slowest Pace

8:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:11

94% of race

Time at Steady Pace

11:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi11:16:0524:077:4624:07
7:46
#14486
10K
6.21 mi11:40:2248:247:4724:17
7:49
#14685
15K
9.32 mi12:04:331:12:357:4724:11
7:47
#14515
20K
12.43 mi12:29:081:37:107:4924:35
7:55
#14407
Half
13.11 mi12:34:281:42:307:495:20
7:49
#14392
25K
15.53 mi12:53:432:01:457:5019:15
7:56
#14201
30K
18.64 mi13:19:012:27:037:5325:18
8:09
#13789
20M
20.00 mi13:30:102:38:127:5511:09
8:12
#13605
21M
21.00 mi13:38:512:46:537:578:41
8:41
#13464
35K
21.75 mi13:44:492:52:517:575:58
7:59
#13393
23M
23.00 mi13:55:043:03:067:5810:15
8:11
#13228
24M
24.00 mi14:02:563:10:587:577:52
7:52
#13088
40K
24.85 mi14:09:473:17:497:586:51
8:01
#12957
25.2M
25.20 mi14:12:463:20:487:582:59
8:39
#12913
Finish
26.22 mi14:20:493:28:517:588:03
7:54
#12862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi144864204420414239(Top 50%)4162(Top 34%)4162(Top 242%)
10K6.21 mi3.10 mi14685-1994356-1524356-15214972(Top 53%)4517(Top 37%)4517(Top 263%)
15K9.32 mi3.11 mi14515+1704265+914265+9114239(Top 50%)4162(Top 34%)4162(Top 242%)
20K12.43 mi3.11 mi14407+1084240+254240+2514205(Top 50%)4198(Top 34%)4198(Top 244%)
Half13.11 mi0.68 mi14392+154232+84232+814422(Top 51%)4287(Top 35%)4287(Top 250%)
25K15.53 mi2.42 mi14201+1914157+754157+7513426(Top 47%)3893(Top 32%)3893(Top 227%)
30K18.64 mi3.11 mi13789+4123987+1703987+17012403(Top 44%)3505(Top 29%)3505(Top 204%)
20M20.00 mi1.36 mi13605+1843910+773910+7711856(Top 42%)3374(Top 28%)3374(Top 196%)
21M21.00 mi1.00 mi13464+1413871+393871+3911603(Top 41%)3401(Top 28%)3401(Top 198%)
35K21.75 mi0.75 mi13393+713853+183853+1812142(Top 43%)3716(Top 30%)3716(Top 216%)
23M23.00 mi1.25 mi13228+1653797+563797+5611308(Top 40%)3387(Top 28%)3387(Top 197%)
24M24.00 mi1.00 mi13088+1403752+453752+4510363(Top 36%)2985(Top 24%)2985(Top 174%)
40K24.85 mi0.85 mi12957+1313708+443708+4410343(Top 36%)3107(Top 25%)3107(Top 181%)
25.2M25.20 mi0.35 mi12913+443695+133695+139819(Top 35%)2945(Top 24%)2945(Top 171%)
Finish26.22 mi1.02 mi12862+513686+93686+912189(Top 43%)4026(Top 33%)4026(Top 234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14239

Females

4162

F40-44

4162

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14972

Females

4517

F40-44

4517

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14239

Females

4162

F40-44

4162

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14205

Females

4198

F40-44

4198

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14422

Females

4287

F40-44

4287

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13426

Females

3893

F40-44

3893

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12403

Females

3505

F40-44

3505

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11856

Females

3374

F40-44

3374

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11603

Females

3401

F40-44

3401

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12142

Females

3716

F40-44

3716

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11308

Females

3387

F40-44

3387

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10363

Females

2985

F40-44

2985

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10343

Females

3107

F40-44

3107

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9819

Females

2945

F40-44

2945

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

12189

Females

4026

F40-44

4026

Passing Analysis

Category:
Athletes Passed
2659
Passed By
1035
Net Change
+1624
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14486
5K → 10K214413-199#14486#14685
10K → 15K281111+170#14685#14515
15K → 20K254146+108#14515#14407
20K → Half4328+15#14407#14392
Half → 25K25564+191#14392#14201
25K → 30K47462+412#14201#13789
30K → 20M21531+184#13789#13605
20M → 21M17938+141#13605#13464
21M → 35K9726+71#13464#13393
35K → 23M18318+165#13393#13228
23M → 24M15818+140#13228#13088
24M → 40K14615+131#13088#12957
40K → 25.2M5713+44#12957#12913
25.2M → Finish10352+51#12913#12862
TOTALS26591035+1624
📊

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