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BOSTON MARATHON 2025

Jack, Arnold

Bib: 32170•M

NY

0:00
0:00
/ mi
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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
30:47
Rank: #25368
Start → 5K
30:47 | 9:54/mi
10K· 6.21 mi
1:01:11
Rank: #25069 (+299)
5K → 10K
30:24 | 9:47/mi
15K· 9.32 mi
1:31:27
Rank: #24847 (+222)
10K → 15K
30:16 | 9:45/mi
20K· 12.43 mi
2:03:59
Rank: #24960 (-113)
15K → 20K
32:32 | 10:28/mi
Half· 13.11 mi
2:10:52
Rank: #24957 (+3)
20K → Half
6:53 | 10:05/mi
25K· 15.53 mi
2:38:59
Rank: #25191 (-234)
Half → 25K
28:07 | 11:36/mi
30K· 18.64 mi
3:15:01
Rank: #25158 (+33)
25K → 30K
36:02 | 11:36/mi
20M
3:31:11
Rank: #25174 (-16)
30K → 20M
16:10 | 11:54/mi
21M
3:45:39
Rank: #25296 (-122)
20M → 21M
14:28 | 14:28/mi
35K· 21.75 mi
3:53:55
Rank: #25273 (+23)
21M → 35K
8:16 | 11:03/mi
23M
4:09:05
Rank: #25280 (-7)
35K → 23M
15:10 | 12:07/mi
24M
4:20:16
Rank: #25237 (+43)
23M → 24M
11:11 | 11:11/mi
40K· 24.85 mi
4:30:38
Rank: #25246 (-9)
24M → 40K
10:22 | 12:07/mi
25.2M
4:35:37
Rank: #25273 (-27)
40K → 25.2M
4:59 | 14:27/mi
Finish· 26.22 mi
4:45:37
Rank: #25222 (+51)
25.2M → Finish
10:00 | 9:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:52
Pace9:59 /mi
2nd Half
Distance13.11 mi
Time2:34:45
Pace11:48 /mi
📊Positive Split: 18.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:0830:479:5430:47
9:54
-
10K
6.21 mi12:26:321:01:119:5130:24
9:47
-0:07
15K
9.32 mi12:56:481:31:279:4930:16
9:45
-0:02
20K
12.43 mi13:29:202:03:599:5932:32
10:28
+0:43
Half
13.11 mi13:36:132:10:529:596:53
10:05
-0:23
25K
15.53 mi14:04:202:38:5910:1428:07
11:36
+1:31
30K
18.64 mi14:40:223:15:0110:2836:02
11:36
0:00
20M
20.00 mi14:56:323:31:1110:3416:10
11:54
+0:18
21M
21.00 mi15:11:003:45:3910:4514:28
14:28
+2:34
35K
21.75 mi15:19:163:53:5510:458:16
11:03
-3:25
23M
23.00 mi15:34:264:09:0510:5015:10
12:07
+1:04
24M
24.00 mi15:45:374:20:1610:5111:11
11:11
-0:56
40K
24.85 mi15:55:594:30:3810:5310:22
12:07
+0:56
25.2M
25.20 mi16:00:584:35:3710:564:59
14:27
+2:20
Finish
26.22 mi16:10:584:45:3710:5410:00
9:49
-4:38

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

9:45 /mi

Average Pace

10:54 /mi

Slowest Pace

14:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:20

38% of race

Time at Steady Pace

2:12:18

46% of race

Time at Slower Pace

44:59

16% of race

Average Pace: 10:54 /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 mi11:56:0830:479:5430:47
9:54
#25368
10K
6.21 mi12:26:321:01:119:5130:24
9:47
#25069
15K
9.32 mi12:56:481:31:279:4930:16
9:45
#24847
20K
12.43 mi13:29:202:03:599:5932:32
10:28
#24960
Half
13.11 mi13:36:132:10:529:596:53
10:05
#24957
25K
15.53 mi14:04:202:38:5910:1428:07
11:36
#25191
30K
18.64 mi14:40:223:15:0110:2836:02
11:36
#25158
20M
20.00 mi14:56:323:31:1110:3416:10
11:54
#25174
21M
21.00 mi15:11:003:45:3910:4514:28
14:28
#25296
35K
21.75 mi15:19:163:53:5510:458:16
11:03
#25273
23M
23.00 mi15:34:264:09:0510:5015:10
12:07
#25280
24M
24.00 mi15:45:374:20:1610:5111:11
11:11
#25237
40K
24.85 mi15:55:594:30:3810:5310:22
12:07
#25246
25.2M
25.20 mi16:00:584:35:3710:564:59
14:27
#25273
Finish
26.22 mi16:10:584:45:3710:5410:00
9:49
#25222
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25368148941489424400(Top 86%)14441(Top 90%)14441(Top 256%)
10K6.21 mi3.10 mi25069+29914742+15214742+15224816(Top 87%)14621(Top 91%)14621(Top 259%)
15K9.32 mi3.11 mi24847+22214645+9714645+9724400(Top 86%)14441(Top 90%)14441(Top 256%)
20K12.43 mi3.11 mi24960-11314683-3814683-3825139(Top 89%)14735(Top 91%)14735(Top 261%)
Half13.11 mi0.68 mi24957+314677+614677+625004(Top 88%)14681(Top 91%)14681(Top 260%)
25K15.53 mi2.42 mi25191-23414769-9214769-9225968(Top 91%)15053(Top 93%)15053(Top 267%)
30K18.64 mi3.11 mi25158+3314723+4614723+4624995(Top 88%)14522(Top 90%)14522(Top 257%)
20M20.00 mi1.36 mi25174-1614715+814715+825113(Top 88%)14511(Top 90%)14511(Top 257%)
21M21.00 mi1.00 mi25296-12214758-4314758-4326681(Top 94%)15201(Top 94%)15201(Top 269%)
35K21.75 mi0.75 mi25273+2314742+1614742+1624315(Top 86%)14028(Top 87%)14028(Top 249%)
23M23.00 mi1.25 mi25280-714735+714735+725285(Top 89%)14471(Top 90%)14471(Top 256%)
24M24.00 mi1.00 mi25237+4314703+3214703+3224359(Top 86%)13999(Top 87%)13999(Top 248%)
40K24.85 mi0.85 mi25246-914696+714696+725117(Top 88%)14322(Top 89%)14322(Top 254%)
25.2M25.20 mi0.35 mi25273-2714709-1314709-1326708(Top 94%)15118(Top 94%)15118(Top 268%)
Finish26.22 mi1.02 mi25222+5114679+3014679+3022326(Top 79%)12938(Top 80%)12938(Top 229%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24400

Males

14441

M18-39

14441

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24816

Males

14621

M18-39

14621

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24400

Males

14441

M18-39

14441

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

25139

Males

14735

M18-39

14735

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

25004

Males

14681

M18-39

14681

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25968

Males

15053

M18-39

15053

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

24995

Males

14522

M18-39

14522

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

25113

Males

14511

M18-39

14511

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

26681

Males

15201

M18-39

15201

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24315

Males

14028

M18-39

14028

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

25285

Males

14471

M18-39

14471

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24359

Males

13999

M18-39

13999

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25117

Males

14322

M18-39

14322

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26708

Males

15118

M18-39

15118

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22326

Males

12938

M18-39

12938

Passing Analysis

Category:
Athletes Passed
1226
Passed By
1080
Net Change
+146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25368
5K → 10K35657+299#25368#25069
10K → 15K25836+222#25069#24847
15K → 20K102215-113#24847#24960
20K → Half3633+3#24960#24957
Half → 25K39273-234#24957#25191
25K → 30K149116+33#25191#25158
30K → 20M4561-16#25158#25174
20M → 21M19141-122#25174#25296
21M → 35K3916+23#25296#25273
35K → 23M3744-7#25273#25280
23M → 24M6320+43#25280#25237
24M → 40K2433-9#25237#25246
40K → 25.2M633-27#25246#25273
25.2M → Finish532+51#25273#25222
TOTALS12261080+146
📊

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