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BOSTON MARATHON 2025

Michael Nelson

Bib: 3362•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 7%
Division (M18-39)
#0 / 5642
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:38
Rank: #1076
Start → 5K
18:38 | 6:00/mi
10K· 6.21 mi
37:10
Rank: #1020 (+56)
5K → 10K
18:32 | 5:58/mi
15K· 9.32 mi
55:43
Rank: #992 (+28)
10K → 15K
18:33 | 5:58/mi
20K· 12.43 mi
1:14:30
Rank: #981 (+11)
15K → 20K
18:47 | 6:03/mi
Half· 13.11 mi
1:18:32
Rank: #977 (+4)
20K → Half
4:02 | 5:55/mi
25K· 15.53 mi
1:33:20
Rank: #974 (+3)
Half → 25K
14:48 | 6:06/mi
30K· 18.64 mi
1:53:55
Rank: #1158 (-184)
25K → 30K
20:35 | 6:38/mi
20M
2:02:34
Rank: #1142 (+16)
30K → 20M
8:39 | 6:22/mi
21M
2:09:23
Rank: #1137 (+5)
20M → 21M
6:49 | 6:49/mi
35K· 21.75 mi
2:14:02
Rank: #1129 (+8)
21M → 35K
4:39 | 6:13/mi
23M
2:22:11
Rank: #1115 (+14)
35K → 23M
8:09 | 6:31/mi
24M
2:28:38
Rank: #1124 (-9)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:34:16
Rank: #1134 (-10)
24M → 40K
5:38 | 6:35/mi
25.2M
2:36:49
Rank: #1144 (-10)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:43:39
Rank: #1205 (-61)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:32
Pace5:59 /mi
2nd Half
Distance13.11 mi
Time1:25:07
Pace6:30 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0418:386:0018:38
6:00
-
10K
6.21 mi10:38:3637:105:5918:32
5:58
-0:02
15K
9.32 mi10:57:0955:435:5918:33
5:58
0:00
20K
12.43 mi11:15:561:14:306:0018:47
6:03
+0:05
Half
13.11 mi11:19:581:18:325:594:02
5:55
-0:08
25K
15.53 mi11:34:461:33:206:0014:48
6:06
+0:11
30K
18.64 mi11:55:211:53:556:0720:35
6:38
+0:32
20M
20.00 mi12:04:002:02:346:088:39
6:22
-0:16
21M
21.00 mi12:10:492:09:236:106:49
6:49
+0:27
35K
21.75 mi12:15:282:14:026:104:39
6:13
-0:36
23M
23.00 mi12:23:372:22:116:118:09
6:31
+0:18
24M
24.00 mi12:30:042:28:386:126:27
6:27
-0:04
40K
24.85 mi12:35:422:34:166:125:38
6:35
+0:08
25.2M
25.20 mi12:38:152:36:496:132:33
7:24
+0:49
Finish
26.22 mi12:45:052:43:396:156:50
6:42
-0:42

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

5:55 /mi

Average Pace

6:15 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:20

57% of race

Time at Steady Pace

27:54

17% of race

Time at Slower Pace

42:25

26% of race

Average Pace: 6:14 /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 mi10:20:0418:386:0018:38
6:00
#1076
10K
6.21 mi10:38:3637:105:5918:32
5:58
#1020
15K
9.32 mi10:57:0955:435:5918:33
5:58
#992
20K
12.43 mi11:15:561:14:306:0018:47
6:03
#981
Half
13.11 mi11:19:581:18:325:594:02
5:55
#977
25K
15.53 mi11:34:461:33:206:0014:48
6:06
#974
30K
18.64 mi11:55:211:53:556:0720:35
6:38
#1158
20M
20.00 mi12:04:002:02:346:088:39
6:22
#1142
21M
21.00 mi12:10:492:09:236:106:49
6:49
#1137
35K
21.75 mi12:15:282:14:026:104:39
6:13
#1129
23M
23.00 mi12:23:372:22:116:118:09
6:31
#1115
24M
24.00 mi12:30:042:28:386:126:27
6:27
#1124
40K
24.85 mi12:35:422:34:166:125:38
6:35
#1134
25.2M
25.20 mi12:38:152:36:496:132:33
7:24
#1144
Finish
26.22 mi12:45:052:43:396:156:50
6:42
#1205
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi107610171017947(Top 3%)894(Top 6%)894(Top 16%)
10K6.21 mi3.10 mi1020+56960+57960+571012(Top 4%)955(Top 6%)955(Top 17%)
15K9.32 mi3.11 mi992+28935+25935+25947(Top 3%)894(Top 6%)894(Top 16%)
20K12.43 mi3.11 mi981+11924+11924+11989(Top 3%)932(Top 6%)932(Top 17%)
Half13.11 mi0.68 mi977+4920+4920+4882(Top 3%)834(Top 5%)834(Top 15%)
25K15.53 mi2.42 mi974+3919+1919+11111(Top 4%)1047(Top 7%)1047(Top 19%)
30K18.64 mi3.11 mi1158-1841093-1741093-1742511(Top 9%)2377(Top 15%)2377(Top 42%)
20M20.00 mi1.36 mi1142+161076+171076+171127(Top 4%)1063(Top 7%)1063(Top 19%)
21M21.00 mi1.00 mi1137+51072+41072+41570(Top 6%)1479(Top 9%)1479(Top 26%)
35K21.75 mi0.75 mi1129+81065+71065+71264(Top 4%)1194(Top 7%)1194(Top 21%)
23M23.00 mi1.25 mi1115+141050+151050+151474(Top 5%)1384(Top 9%)1384(Top 25%)
24M24.00 mi1.00 mi1124-91058-81058-81828(Top 6%)1697(Top 11%)1697(Top 30%)
40K24.85 mi0.85 mi1134-101068-101068-101904(Top 7%)1754(Top 11%)1754(Top 31%)
25.2M25.20 mi0.35 mi1144-101077-91077-92845(Top 10%)2524(Top 16%)2524(Top 45%)
Finish26.22 mi1.02 mi1205-611133-561133-563858(Top 14%)3323(Top 21%)3323(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

947

Males

894

M18-39

894

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1012

Males

955

M18-39

955

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

947

Males

894

M18-39

894

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

989

Males

932

M18-39

932

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

882

Males

834

M18-39

834

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1111

Males

1047

M18-39

1047

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2511

Males

2377

M18-39

2377

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1127

Males

1063

M18-39

1063

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1570

Males

1479

M18-39

1479

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1264

Males

1194

M18-39

1194

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1474

Males

1384

M18-39

1384

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1828

Males

1697

M18-39

1697

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1904

Males

1754

M18-39

1754

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2845

Males

2524

M18-39

2524

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3858

Males

3323

M18-39

3323

Passing Analysis

Category:
Athletes Passed
373
Passed By
502
Net Change
-129
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1076
5K → 10K7620+56#1076#1020
10K → 15K4719+28#1020#992
15K → 20K3322+11#992#981
20K → Half84+4#981#977
Half → 25K2623+3#977#974
25K → 30K21205-184#974#1158
30K → 20M3418+16#1158#1142
20M → 21M3126+5#1142#1137
21M → 35K1911+8#1137#1129
35K → 23M4329+14#1129#1115
23M → 24M1322-9#1115#1124
24M → 40K1323-10#1124#1134
40K → 25.2M111-10#1134#1144
25.2M → Finish869-61#1144#1205
TOTALS373502-129
📊

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