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BOSTON MARATHON 2025

Mary Grover

Bib: 11655•F

MO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:01
Rank: #11417
Start → 5K
23:01 | 7:25/mi
10K· 6.21 mi
46:09
Rank: #11488 (-71)
5K → 10K
23:08 | 7:27/mi
15K· 9.32 mi
1:09:13
Rank: #11314 (+174)
10K → 15K
23:04 | 7:25/mi
20K· 12.43 mi
1:32:34
Rank: #11218 (+96)
15K → 20K
23:21 | 7:31/mi
Half· 13.11 mi
1:37:35
Rank: #11178 (+40)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:55:42
Rank: #10878 (+300)
Half → 25K
18:07 | 7:28/mi
30K· 18.64 mi
2:19:14
Rank: #10304 (+574)
25K → 30K
23:32 | 7:34/mi
20M
2:29:46
Rank: #10132 (+172)
30K → 20M
10:32 | 7:45/mi
21M
2:37:45
Rank: #9902 (+230)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:43:18
Rank: #9817 (+85)
21M → 35K
5:33 | 7:25/mi
23M
2:52:58
Rank: #9678 (+139)
35K → 23M
9:40 | 7:43/mi
24M
3:00:33
Rank: #9587 (+91)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:07:05
Rank: #9478 (+109)
24M → 40K
6:32 | 7:38/mi
25.2M
3:10:00
Rank: #9445 (+33)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:17:47
Rank: #9445
25.2M → Finish
7:47 | 7:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:35
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:40:12
Pace7:39 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2923:017:2523:01
7:25
-
10K
6.21 mi11:12:3746:097:2623:08
7:27
+0:02
15K
9.32 mi11:35:411:09:137:2623:04
7:25
-0:02
20K
12.43 mi11:59:021:32:347:2723:21
7:31
+0:06
Half
13.11 mi12:04:031:37:357:275:01
7:21
-0:10
25K
15.53 mi12:22:101:55:427:2718:07
7:28
+0:07
30K
18.64 mi12:45:422:19:147:2823:32
7:34
+0:06
20M
20.00 mi12:56:142:29:467:2910:32
7:45
+0:11
21M
21.00 mi13:04:132:37:457:317:59
7:59
+0:14
35K
21.75 mi13:09:462:43:187:315:33
7:25
-0:34
23M
23.00 mi13:19:262:52:587:319:40
7:43
+0:18
24M
24.00 mi13:27:013:00:337:317:35
7:35
-0:08
40K
24.85 mi13:33:333:07:057:326:32
7:38
+0:03
25.2M
25.20 mi13:36:283:10:007:322:55
8:27
+0:49
Finish
26.22 mi13:44:153:17:477:337:47
7:38
-0:49

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

7:21 /mi

Average Pace

7:33 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:52

99% of race

Time at Steady Pace

2:55

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:49:2923:017:2523:01
7:25
#11417
10K
6.21 mi11:12:3746:097:2623:08
7:27
#11488
15K
9.32 mi11:35:411:09:137:2623:04
7:25
#11314
20K
12.43 mi11:59:021:32:347:2723:21
7:31
#11218
Half
13.11 mi12:04:031:37:357:275:01
7:21
#11178
25K
15.53 mi12:22:101:55:427:2718:07
7:28
#10878
30K
18.64 mi12:45:422:19:147:2823:32
7:34
#10304
20M
20.00 mi12:56:142:29:467:2910:32
7:45
#10132
21M
21.00 mi13:04:132:37:457:317:59
7:59
#9902
35K
21.75 mi13:09:462:43:187:315:33
7:25
#9817
23M
23.00 mi13:19:262:52:587:319:40
7:43
#9678
24M
24.00 mi13:27:013:00:337:317:35
7:35
#9587
40K
24.85 mi13:33:333:07:057:326:32
7:38
#9478
25.2M
25.20 mi13:36:283:10:007:322:55
8:27
#9445
Finish
26.22 mi13:44:153:17:477:337:47
7:38
#9445
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114172486248611108(Top 39%)2422(Top 20%)2422(Top 44%)
10K6.21 mi3.10 mi11488-712545-592545-5911611(Top 41%)2614(Top 21%)2614(Top 48%)
15K9.32 mi3.11 mi11314+1742481+642481+6411108(Top 39%)2422(Top 20%)2422(Top 44%)
20K12.43 mi3.11 mi11218+962459+222459+2210897(Top 38%)2416(Top 20%)2416(Top 44%)
Half13.11 mi0.68 mi11178+402442+172442+1710521(Top 37%)2186(Top 18%)2186(Top 40%)
25K15.53 mi2.42 mi10878+3002321+1212321+1219748(Top 34%)1997(Top 16%)1997(Top 37%)
30K18.64 mi3.11 mi10304+5742104+2172104+2178274(Top 29%)1502(Top 12%)1502(Top 27%)
20M20.00 mi1.36 mi10132+1722051+532051+538739(Top 31%)1851(Top 15%)1851(Top 34%)
21M21.00 mi1.00 mi9902+2301978+731978+737293(Top 26%)1433(Top 12%)1433(Top 26%)
35K21.75 mi0.75 mi9817+851967+111967+118103(Top 29%)1729(Top 14%)1729(Top 32%)
23M23.00 mi1.25 mi9678+1391940+271940+278041(Top 28%)1838(Top 15%)1838(Top 34%)
24M24.00 mi1.00 mi9587+911941-11941-18326(Top 29%)2018(Top 17%)2018(Top 37%)
40K24.85 mi0.85 mi9478+1091923+181923+187738(Top 27%)1864(Top 15%)1864(Top 34%)
25.2M25.20 mi0.35 mi9445+331930-71930-78613(Top 30%)2326(Top 19%)2326(Top 43%)
Finish26.22 mi1.02 mi94451965-351965-3510231(Top 36%)3091(Top 25%)3091(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

11108

Females

2422

F18-39

2422

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11611

Females

2614

F18-39

2614

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

11108

Females

2422

F18-39

2422

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10897

Females

2416

F18-39

2416

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10521

Females

2186

F18-39

2186

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9748

Females

1997

F18-39

1997

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8274

Females

1502

F18-39

1502

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8739

Females

1851

F18-39

1851

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7293

Females

1433

F18-39

1433

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8103

Females

1729

F18-39

1729

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

8041

Females

1838

F18-39

1838

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8326

Females

2018

F18-39

2018

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7738

Females

1864

F18-39

1864

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8613

Females

2326

F18-39

2326

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10231

Females

3091

F18-39

3091

Passing Analysis

Category:
Athletes Passed
2792*
Passed By
820
Net Change
+1972
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11417
5K → 10K218289-71#11417#11488
10K → 15K27197+174#11488#11314
15K → 20K220124+96#11314#11218
20K → Half5515+40#11218#11178
Half → 25K32121+300#11178#10878
25K → 30K58511+574#10878#10304
30K → 20M20533+172#10304#10132
20M → 21M248*18+230#10132#9902
21M → 35K10823+85#9902#9817
35K → 23M17233+139#9817#9678
23M → 24M13847+91#9678#9587
24M → 40K12516+109#9587#9478
40K → 25.2M5623+33#9478#9445
25.2M → Finish70700#9445#9445
TOTALS2792*820+1972

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

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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