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BOSTON MARATHON 2025

Grant Arnold

Bib: 3576•M

OH

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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:02
Rank: #17053
Start → 5K
25:02 | 8:03/mi
10K· 6.21 mi
50:02
Rank: #16914 (+139)
5K → 10K
25:00 | 8:03/mi
15K· 9.32 mi
1:15:04
Rank: #16730 (+184)
10K → 15K
25:02 | 8:03/mi
20K· 12.43 mi
1:40:32
Rank: #16599 (+131)
15K → 20K
25:28 | 8:12/mi
Half· 13.11 mi
1:45:59
Rank: #16561 (+38)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:06:05
Rank: #16423 (+138)
Half → 25K
20:06 | 8:17/mi
30K· 18.64 mi
2:32:34
Rank: #16115 (+308)
25K → 30K
26:29 | 8:31/mi
20M
2:46:52
Rank: #16783 (-668)
30K → 20M
14:18 | 10:31/mi
21M
2:55:45
Rank: #16515 (+268)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
3:04:26
Rank: #17148 (-633)
21M → 35K
8:41 | 11:36/mi
23M
3:16:05
Rank: #17189 (-41)
35K → 23M
11:39 | 9:18/mi
24M
3:26:23
Rank: #17531 (-342)
23M → 24M
10:18 | 10:18/mi
40K· 24.85 mi
3:35:25
Rank: #17799 (-268)
24M → 40K
9:02 | 10:34/mi
25.2M
3:38:30
Rank: #17688 (+111)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:46:47
Rank: #17543 (+145)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:59
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time2:00:48
Pace9:13 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2825:028:0325:02
8:03
-
10K
6.21 mi11:21:2850:028:0325:00
8:03
0:00
15K
9.32 mi11:46:301:15:048:0325:02
8:03
0:00
20K
12.43 mi12:11:581:40:328:0525:28
8:12
+0:09
Half
13.11 mi12:17:251:45:598:055:27
7:59
-0:13
25K
15.53 mi12:37:312:06:058:0720:06
8:17
+0:18
30K
18.64 mi13:04:002:32:348:1126:29
8:31
+0:14
20M
20.00 mi13:18:182:46:528:2114:18
10:31
+2:00
21M
21.00 mi13:27:112:55:458:228:53
8:53
-1:38
35K
21.75 mi13:35:523:04:268:298:41
11:36
+2:43
23M
23.00 mi13:47:313:16:058:3211:39
9:18
-2:18
24M
24.00 mi13:57:493:26:238:3610:18
10:18
+1:00
40K
24.85 mi14:06:513:35:258:409:02
10:34
+0:16
25.2M
25.20 mi14:09:563:38:308:403:05
8:56
-1:38
Finish
26.22 mi14:18:133:46:478:398:17
8:08
-0:48

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

7:59 /mi

Average Pace

8:39 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:52:49

76% of race

Time at Slower Pace

53:58

24% of race

Average Pace: 8:39 /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 mi10:56:2825:028:0325:02
8:03
#17053
10K
6.21 mi11:21:2850:028:0325:00
8:03
#16914
15K
9.32 mi11:46:301:15:048:0325:02
8:03
#16730
20K
12.43 mi12:11:581:40:328:0525:28
8:12
#16599
Half
13.11 mi12:17:251:45:598:055:27
7:59
#16561
25K
15.53 mi12:37:312:06:058:0720:06
8:17
#16423
30K
18.64 mi13:04:002:32:348:1126:29
8:31
#16115
20M
20.00 mi13:18:182:46:528:2114:18
10:31
#16783
21M
21.00 mi13:27:112:55:458:228:53
8:53
#16515
35K
21.75 mi13:35:523:04:268:298:41
11:36
#17148
23M
23.00 mi13:47:313:16:058:3211:39
9:18
#17189
24M
24.00 mi13:57:493:26:238:3610:18
10:18
#17531
40K
24.85 mi14:06:513:35:258:409:02
10:34
#17799
25.2M
25.20 mi14:09:563:38:308:403:05
8:56
#17688
Finish
26.22 mi14:18:133:46:478:398:17
8:08
#17543
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17053112361123616458(Top 58%)11001(Top 68%)11001(Top 195%)
10K6.21 mi3.10 mi16914+13911193+4311193+4316808(Top 59%)11166(Top 69%)11166(Top 198%)
15K9.32 mi3.11 mi16730+18411115+7811115+7816458(Top 58%)11001(Top 68%)11001(Top 195%)
20K12.43 mi3.11 mi16599+13111052+6311052+6316283(Top 57%)10865(Top 67%)10865(Top 193%)
Half13.11 mi0.68 mi16561+3811037+1511037+1515783(Top 56%)10701(Top 66%)10701(Top 190%)
25K15.53 mi2.42 mi16423+13810956+8110956+8115851(Top 56%)10582(Top 66%)10582(Top 188%)
30K18.64 mi3.11 mi16115+30810774+18210774+18214908(Top 52%)10019(Top 62%)10019(Top 178%)
20M20.00 mi1.36 mi16783-66811028-25411028-25422481(Top 79%)13271(Top 82%)13271(Top 235%)
21M21.00 mi1.00 mi16515+26810878+15010878+15012826(Top 45%)8767(Top 54%)8767(Top 155%)
35K21.75 mi0.75 mi17148-63311109-23111109-23125264(Top 89%)14472(Top 90%)14472(Top 257%)
23M23.00 mi1.25 mi17189-4111095+1411095+1417779(Top 63%)10857(Top 67%)10857(Top 192%)
24M24.00 mi1.00 mi17531-34211217-12211217-12222228(Top 78%)12915(Top 80%)12915(Top 229%)
40K24.85 mi0.85 mi17799-26811315-9811315-9822081(Top 78%)12779(Top 79%)12779(Top 226%)
25.2M25.20 mi0.35 mi17688+11111247+6811247+6811469(Top 40%)7729(Top 48%)7729(Top 137%)
Finish26.22 mi1.02 mi17543+14511161+8611161+8613783(Top 49%)8907(Top 55%)8907(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

16458

Males

11001

M18-39

11001

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16808

Males

11166

M18-39

11166

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

16458

Males

11001

M18-39

11001

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

16283

Males

10865

M18-39

10865

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

15783

Males

10701

M18-39

10701

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15851

Males

10582

M18-39

10582

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14908

Males

10019

M18-39

10019

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22481

Males

13271

M18-39

13271

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12826

Males

8767

M18-39

8767

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25264

Males

14472

M18-39

14472

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17779

Males

10857

M18-39

10857

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22228

Males

12915

M18-39

12915

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22081

Males

12779

M18-39

12779

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11469

Males

7729

M18-39

7729

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13783

Males

8907

M18-39

8907

Passing Analysis

Category:
Athletes Passed
2286
Passed By
2776
Net Change
-490
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17053
5K → 10K370231+139#17053#16914
10K → 15K296112+184#16914#16730
15K → 20K272141+131#16730#16599
20K → Half5012+38#16599#16561
Half → 25K21577+138#16561#16423
25K → 30K38981+308#16423#16115
30K → 20M17685-668#16115#16783
20M → 21M2724+268#16783#16515
21M → 35K6639-633#16515#17148
35K → 23M97138-41#17148#17189
23M → 24M27369-342#17189#17531
24M → 40K8276-268#17531#17799
40K → 25.2M1143+111#17799#17688
25.2M → Finish1538+145#17688#17543
TOTALS22862776-490
📊

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