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BOSTON MARATHON 2025

Seth Arnold

Bib: 4047•M

KS

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:20
Rank: #1984
Start → 5K
19:20 | 6:13/mi
10K· 6.21 mi
38:35
Rank: #1921 (+63)
5K → 10K
19:15 | 6:12/mi
15K· 9.32 mi
57:58
Rank: #1934 (-13)
10K → 15K
19:23 | 6:14/mi
20K· 12.43 mi
1:17:31
Rank: #1931 (+3)
15K → 20K
19:33 | 6:18/mi
Half· 13.11 mi
1:21:46
Rank: #1934 (-3)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:37:09
Rank: #1952 (-18)
Half → 25K
15:23 | 6:21/mi
30K· 18.64 mi
1:57:39
Rank: #1993 (-41)
25K → 30K
20:30 | 6:36/mi
20M
2:06:48
Rank: #2018 (-25)
30K → 20M
9:09 | 6:44/mi
21M
2:13:55
Rank: #2051 (-33)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:18:52
Rank: #2068 (-17)
21M → 35K
4:57 | 6:37/mi
23M
2:27:41
Rank: #2129 (-61)
35K → 23M
8:49 | 7:03/mi
24M
2:34:25
Rank: #2133 (-4)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:40:18
Rank: #2149 (-16)
24M → 40K
5:53 | 6:53/mi
25.2M
2:42:55
Rank: #2164 (-15)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:49:35
Rank: #2187 (-23)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:46
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:27:49
Pace6:42 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2119:206:1319:20
6:13
-
10K
6.21 mi10:40:3638:356:1319:15
6:12
-0:01
15K
9.32 mi10:59:5957:586:1319:23
6:14
+0:02
20K
12.43 mi11:19:321:17:316:1419:33
6:18
+0:04
Half
13.11 mi11:23:471:21:466:144:15
6:14
-0:04
25K
15.53 mi11:39:101:37:096:1515:23
6:21
+0:07
30K
18.64 mi11:59:401:57:396:1920:30
6:36
+0:15
20M
20.00 mi12:08:492:06:486:209:09
6:44
+0:08
21M
21.00 mi12:15:562:13:556:237:07
7:07
+0:23
35K
21.75 mi12:20:532:18:526:234:57
6:37
-0:30
23M
23.00 mi12:29:422:27:416:258:49
7:03
+0:26
24M
24.00 mi12:36:262:34:256:266:44
6:44
-0:19
40K
24.85 mi12:42:192:40:186:275:53
6:53
+0:09
25.2M
25.20 mi12:44:562:42:556:282:37
7:35
+0:42
Finish
26.22 mi12:51:362:49:356:286:40
6:33
-1:02

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

6:12 /mi

Average Pace

6:28 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:09

57% of race

Time at Steady Pace

48:00

28% of race

Time at Slower Pace

24:26

14% of race

Average Pace: 6:28 /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 mi10:21:2119:206:1319:20
6:13
#1984
10K
6.21 mi10:40:3638:356:1319:15
6:12
#1921
15K
9.32 mi10:59:5957:586:1319:23
6:14
#1934
20K
12.43 mi11:19:321:17:316:1419:33
6:18
#1931
Half
13.11 mi11:23:471:21:466:144:15
6:14
#1934
25K
15.53 mi11:39:101:37:096:1515:23
6:21
#1952
30K
18.64 mi11:59:401:57:396:1920:30
6:36
#1993
20M
20.00 mi12:08:492:06:486:209:09
6:44
#2018
21M
21.00 mi12:15:562:13:556:237:07
7:07
#2051
35K
21.75 mi12:20:532:18:526:234:57
6:37
#2068
23M
23.00 mi12:29:422:27:416:258:49
7:03
#2129
24M
24.00 mi12:36:262:34:256:266:44
6:44
#2133
40K
24.85 mi12:42:192:40:186:275:53
6:53
#2149
25.2M
25.20 mi12:44:562:42:556:282:37
7:35
#2164
Finish
26.22 mi12:51:362:49:356:286:40
6:33
#2187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1984188718872025(Top 7%)1929(Top 12%)1929(Top 34%)
10K6.21 mi3.10 mi1921+631829+581829+581888(Top 7%)1795(Top 11%)1795(Top 32%)
15K9.32 mi3.11 mi1934-131840-111840-112025(Top 7%)1929(Top 12%)1929(Top 34%)
20K12.43 mi3.11 mi1931+31841-11841-11976(Top 7%)1883(Top 12%)1883(Top 33%)
Half13.11 mi0.68 mi1934-31844-31844-32120(Top 7%)2024(Top 13%)2024(Top 36%)
25K15.53 mi2.42 mi1952-181862-181862-182073(Top 7%)1974(Top 12%)1974(Top 35%)
30K18.64 mi3.11 mi1993-411897-351897-352397(Top 8%)2269(Top 14%)2269(Top 40%)
20M20.00 mi1.36 mi2018-251923-261923-262595(Top 9%)2437(Top 15%)2437(Top 43%)
21M21.00 mi1.00 mi2051-331952-291952-292728(Top 10%)2531(Top 16%)2531(Top 45%)
35K21.75 mi0.75 mi2068-171967-151967-153003(Top 11%)2758(Top 17%)2758(Top 49%)
23M23.00 mi1.25 mi2129-612026-592026-593976(Top 14%)3546(Top 22%)3546(Top 63%)
24M24.00 mi1.00 mi2133-42028-22028-23114(Top 11%)2810(Top 17%)2810(Top 50%)
40K24.85 mi0.85 mi2149-162041-132041-133226(Top 11%)2878(Top 18%)2878(Top 51%)
25.2M25.20 mi0.35 mi2164-152055-142055-143721(Top 13%)3203(Top 20%)3203(Top 57%)
Finish26.22 mi1.02 mi2187-232076-212076-213001(Top 11%)2669(Top 17%)2669(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2025

Males

1929

M18-39

1929

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1888

Males

1795

M18-39

1795

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2025

Males

1929

M18-39

1929

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1976

Males

1883

M18-39

1883

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2120

Males

2024

M18-39

2024

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2073

Males

1974

M18-39

1974

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2397

Males

2269

M18-39

2269

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2595

Males

2437

M18-39

2437

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2728

Males

2531

M18-39

2531

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3003

Males

2758

M18-39

2758

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3976

Males

3546

M18-39

3546

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3114

Males

2810

M18-39

2810

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3226

Males

2878

M18-39

2878

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3721

Males

3203

M18-39

3203

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3001

Males

2669

M18-39

2669

Passing Analysis

Category:
Athletes Passed
585
Passed By
788
Net Change
-203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1984
5K → 10K14683+63#1984#1921
10K → 15K5669-13#1921#1934
15K → 20K6764+3#1934#1931
20K → Half1215-3#1931#1934
Half → 25K4159-18#1934#1952
25K → 30K61102-41#1952#1993
30K → 20M3055-25#1993#2018
20M → 21M2356-33#2018#2051
21M → 35K2138-17#2051#2068
35K → 23M2990-61#2068#2129
23M → 24M3741-4#2129#2133
24M → 40K2844-16#2133#2149
40K → 25.2M1328-15#2149#2164
25.2M → Finish2144-23#2164#2187
TOTALS585788-203
📊

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