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BOSTON MARATHON 2025

Grace Bolner

Bib: 26862•F

NY

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0:00
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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

Start
0:00:00
Race begins
5K· 3.11 mi
27:56
Rank: #22382
Start → 5K
27:56 | 8:59/mi
10K· 6.21 mi
55:37
Rank: #22215 (+167)
5K → 10K
27:41 | 8:55/mi
15K· 9.32 mi
1:23:43
Rank: #22208 (+7)
10K → 15K
28:06 | 9:03/mi
20K· 12.43 mi
1:52:22
Rank: #22120 (+88)
15K → 20K
28:39 | 9:13/mi
Half· 13.11 mi
1:58:37
Rank: #22134 (-14)
20K → Half
6:15 | 9:10/mi
25K· 15.53 mi
2:22:00
Rank: #22202 (-68)
Half → 25K
23:23 | 9:39/mi
30K· 18.64 mi
2:54:56
Rank: #22439 (-237)
25K → 30K
32:56 | 10:36/mi
20M
3:09:23
Rank: #22463 (-24)
30K → 20M
14:27 | 10:38/mi
21M
3:20:31
Rank: #22402 (+61)
20M → 21M
11:08 | 11:08/mi
35K· 21.75 mi
3:27:59
Rank: #22373 (+29)
21M → 35K
7:28 | 9:59/mi
23M
3:41:17
Rank: #22360 (+13)
35K → 23M
13:18 | 10:37/mi
24M
3:51:41
Rank: #22360
23M → 24M
10:24 | 10:24/mi
40K· 24.85 mi
4:00:44
Rank: #22335 (+25)
24M → 40K
9:03 | 10:35/mi
25.2M
4:04:39
Rank: #22319 (+16)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
4:14:47
Rank: #22327 (-8)
25.2M → Finish
10:08 | 9:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:37
Pace9:03 /mi
2nd Half
Distance13.11 mi
Time2:16:10
Pace10:23 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5227:568:5927:56
8:59
-
10K
6.21 mi12:16:3355:378:5727:41
8:55
-0:04
15K
9.32 mi12:44:391:23:438:5928:06
9:03
+0:08
20K
12.43 mi13:13:181:52:229:0328:39
9:13
+0:10
Half
13.11 mi13:19:331:58:379:036:15
9:10
-0:03
25K
15.53 mi13:42:562:22:009:0823:23
9:39
+0:29
30K
18.64 mi14:15:522:54:569:2332:56
10:36
+0:57
20M
20.00 mi14:30:193:09:239:2814:27
10:38
+0:02
21M
21.00 mi14:41:273:20:319:3311:08
11:08
+0:30
35K
21.75 mi14:48:553:27:599:347:28
9:59
-1:09
23M
23.00 mi15:02:133:41:179:3713:18
10:37
+0:38
24M
24.00 mi15:12:373:51:419:3910:24
10:24
-0:13
40K
24.85 mi15:21:404:00:449:419:03
10:35
+0:11
25.2M
25.20 mi15:25:354:04:399:433:55
11:21
+0:46
Finish
26.22 mi15:35:434:14:479:4310:08
9:57
-1:24

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

8:55 /mi

Average Pace

9:43 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:37

47% of race

Time at Steady Pace

40:59

16% of race

Time at Slower Pace

1:35:11

37% of race

Average Pace: 9:43 /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 mi11:48:5227:568:5927:56
8:59
#22382
10K
6.21 mi12:16:3355:378:5727:41
8:55
#22215
15K
9.32 mi12:44:391:23:438:5928:06
9:03
#22208
20K
12.43 mi13:13:181:52:229:0328:39
9:13
#22120
Half
13.11 mi13:19:331:58:379:036:15
9:10
#22134
25K
15.53 mi13:42:562:22:009:0823:23
9:39
#22202
30K
18.64 mi14:15:522:54:569:2332:56
10:36
#22439
20M
20.00 mi14:30:193:09:239:2814:27
10:38
#22463
21M
21.00 mi14:41:273:20:319:3311:08
11:08
#22402
35K
21.75 mi14:48:553:27:599:347:28
9:59
#22373
23M
23.00 mi15:02:133:41:179:3713:18
10:37
#22360
24M
24.00 mi15:12:373:51:419:3910:24
10:24
#22360
40K
24.85 mi15:21:404:00:449:419:03
10:35
#22335
25.2M
25.20 mi15:25:354:04:399:433:55
11:21
#22319
Finish
26.22 mi15:35:434:14:479:4310:08
9:57
#22327
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi223828847884722241(Top 78%)8687(Top 71%)8687(Top 159%)
10K6.21 mi3.10 mi22215+1678734+1138734+11321989(Top 77%)8592(Top 70%)8592(Top 157%)
15K9.32 mi3.11 mi22208+78705+298705+2922241(Top 78%)8687(Top 71%)8687(Top 159%)
20K12.43 mi3.11 mi22120+888663+428663+4221980(Top 77%)8573(Top 70%)8573(Top 157%)
Half13.11 mi0.68 mi22134-148670-78670-722485(Top 79%)8876(Top 73%)8876(Top 162%)
25K15.53 mi2.42 mi22202-688711-418711-4122349(Top 79%)8846(Top 72%)8846(Top 162%)
30K18.64 mi3.11 mi22439-2378878-1678878-16723169(Top 82%)9422(Top 77%)9422(Top 172%)
20M20.00 mi1.36 mi22463-248908-308908-3022785(Top 80%)9301(Top 76%)9301(Top 170%)
21M21.00 mi1.00 mi22402+618889+198889+1921743(Top 77%)8832(Top 72%)8832(Top 161%)
35K21.75 mi0.75 mi22373+298887+28887+221863(Top 77%)8971(Top 73%)8971(Top 164%)
23M23.00 mi1.25 mi22360+138919-328919-3222344(Top 79%)9251(Top 76%)9251(Top 169%)
24M24.00 mi1.00 mi223608938-198938-1922543(Top 79%)9410(Top 77%)9410(Top 172%)
40K24.85 mi0.85 mi22335+258941-38941-322164(Top 78%)9286(Top 76%)9286(Top 170%)
25.2M25.20 mi0.35 mi22319+168938+38938+321702(Top 76%)9008(Top 74%)9008(Top 165%)
Finish26.22 mi1.02 mi22327-88962-248962-2422771(Top 80%)9555(Top 78%)9555(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

22241

Females

8687

F18-39

8687

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

21989

Females

8592

F18-39

8592

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

22241

Females

8687

F18-39

8687

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21980

Females

8573

F18-39

8573

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22485

Females

8876

F18-39

8876

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

22349

Females

8846

F18-39

8846

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23169

Females

9422

F18-39

9422

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22785

Females

9301

F18-39

9301

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21743

Females

8832

F18-39

8832

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

21863

Females

8971

F18-39

8971

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

22344

Females

9251

F18-39

9251

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22543

Females

9410

F18-39

9410

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22164

Females

9286

F18-39

9286

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21702

Females

9008

F18-39

9008

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

22771

Females

9555

F18-39

9555

Passing Analysis

Category:
Athletes Passed
1524
Passed By
1469
Net Change
+55
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22382
5K → 10K351184+167#22382#22215
10K → 15K191184+7#22215#22208
15K → 20K223135+88#22208#22120
20K → Half3246-14#22120#22134
Half → 25K122190-68#22134#22202
25K → 30K120357-237#22202#22439
30K → 20M7094-24#22439#22463
20M → 21M9938+61#22463#22402
21M → 35K5627+29#22402#22373
35K → 23M8471+13#22373#22360
23M → 24M56560#22360#22360
24M → 40K5833+25#22360#22335
40K → 25.2M237+16#22335#22319
25.2M → Finish3947-8#22319#22327
TOTALS15241469+55
📊

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