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BOSTON MARATHON 2025

Alex Culler

Bib: 506•M

OH

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 0.5%
Gender (Male)
#0 / 16105
Top 0.8%
Division (M18-39)
#0 / 5642
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
5:36/mi
17:25
↑ 97↓ 3451.5%
10K· 6.21 mi
5:32/mi
34:38
↑ 79↓ 1380.4%
15K· 9.32 mi
5:35/mi
51:59
↑ 67↓ 78
20K· 12.43 mi
5:42/mi
1:09:43
↑ 106↓ 860.1%
Half· 13.11 mi
5:36/mi
1:13:32
↑ 19↓ 370.5%
25K· 15.53 mi
5:37/mi
1:27:08
↑ 66↓ 880.2%
30K· 18.64 mi
5:42/mi
1:44:49
↑ 181↓ 1480.2%
20M
5:50/mi
1:52:44
↑ 64↓ 500.2%
21M
6:01/mi
1:58:45
↑ 106↓ 241.6%
35K· 21.75 mi
5:40/mi
2:02:59
↑ 17↓ 861.7%
23M
5:42/mi
2:10:07
↑ 23↓ 630.6%
24M
5:32/mi
2:15:39
↓ 821.3%
40K· 24.85 mi
5:36/mi
2:20:26
↓ 200.3%
25.2M
6:05/mi
2:22:32
↑ 13↓ 160.2%
Finish· 26.22 mi
5:27/mi
2:28:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:13:32
Pace5:37 /mi
2nd Half
Distance13.11 mi
Time1:14:33
Pace5:41 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:3617:255:3617:25
5:36
-
10K
6.21 mi10:34:4934:385:3417:13
5:32
-0:04
15K
9.32 mi10:52:1051:595:3517:21
5:35
+0:03
20K
12.43 mi11:09:541:09:435:3717:44
5:42
+0:07
Half
13.11 mi11:13:431:13:325:373:49
5:36
-0:06
25K
15.53 mi11:27:191:27:085:3713:36
5:37
+0:01
30K
18.64 mi11:45:001:44:495:3717:41
5:42
+0:05
20M
20.00 mi11:52:551:52:445:387:55
5:50
+0:08
21M
21.00 mi11:58:561:58:455:396:01
6:01
+0:11
35K
21.75 mi12:03:102:02:595:394:14
5:40
-0:21
23M
23.00 mi12:10:182:10:075:397:08
5:42
+0:02
24M
24.00 mi12:15:502:15:395:395:32
5:32
-0:10
40K
24.85 mi12:20:372:20:265:394:47
5:36
+0:04
25.2M
25.20 mi12:22:432:22:325:392:06
6:05
+0:29
Finish
26.22 mi12:28:162:28:055:395:33
5:27
-0:38

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

5:27 /mi

Average Pace

5:39 /mi

Slowest Pace

6:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:58

95% of race

Time at Steady Pace

8:07

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:39 /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 mi10:17:3617:255:3617:25
5:36
#308
10K
6.21 mi10:34:4934:385:3417:13
5:32
#269
15K
9.32 mi10:52:1051:595:3517:21
5:35
#257
20K
12.43 mi11:09:541:09:435:3717:44
5:42
#267
Half
13.11 mi11:13:431:13:325:373:49
5:36
#265
25K
15.53 mi11:27:191:27:085:3713:36
5:37
#243
30K
18.64 mi11:45:001:44:495:3717:41
5:42
#214
20M
20.00 mi11:52:551:52:445:387:55
5:50
#203
21M
21.00 mi11:58:561:58:455:396:01
6:01
#189
35K
21.75 mi12:03:102:02:595:394:14
5:40
#190
23M
23.00 mi12:10:182:10:075:397:08
5:42
#177
24M
24.00 mi12:15:502:15:395:395:32
5:32
#169
40K
24.85 mi12:20:372:20:265:394:47
5:36
#161
25.2M
25.20 mi12:22:432:22:325:392:06
6:05
#159
Finish
26.22 mi12:28:162:28:055:395:33
5:27
#150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi308279279235(Top 0.8%)208(Top 1%)208(Top 4%)
10K6.21 mi3.10 mi269+39240+39240+39238(Top 0.8%)209(Top 1%)209(Top 4%)
15K9.32 mi3.11 mi257+12229+11229+11235(Top 0.8%)208(Top 1%)208(Top 4%)
20K12.43 mi3.11 mi267-10239-10239-10321(Top 1%)292(Top 2%)292(Top 5%)
Half13.11 mi0.68 mi265+2238+1238+1282(Top 1.0%)257(Top 2%)257(Top 5%)
25K15.53 mi2.42 mi243+22217+21217+21195(Top 0.7%)172(Top 1%)172(Top 3%)
30K18.64 mi3.11 mi214+29189+28189+28165(Top 0.6%)145(Top 0.9%)145(Top 3%)
20M20.00 mi1.36 mi203+11180+9180+9204(Top 0.7%)186(Top 1%)186(Top 3%)
21M21.00 mi1.00 mi189+14167+13167+13126(Top 0.4%)118(Top 0.7%)118(Top 2%)
35K21.75 mi0.75 mi190-1168-1168-1219(Top 0.8%)199(Top 1%)199(Top 4%)
23M23.00 mi1.25 mi177+13156+12156+12114(Top 0.4%)106(Top 0.7%)106(Top 2%)
24M24.00 mi1.00 mi169+8148+8148+8102(Top 0.4%)96(Top 0.6%)96(Top 2%)
40K24.85 mi0.85 mi161+8140+8140+888(Top 0.3%)83(Top 0.5%)83(Top 1%)
25.2M25.20 mi0.35 mi159+2138+2138+2108(Top 0.4%)101(Top 0.6%)101(Top 2%)
Finish26.22 mi1.02 mi150+9129+9129+9110(Top 0.4%)105(Top 0.7%)105(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.8%
×21story building
+97ft-345ft

Overall

235

Males

208

M18-39

208

5K→10K

3.1 - 6.2 mi

Top 0.8%
×5story building
+79ft-138ft

Overall

238

Males

209

M18-39

209

10K→15K

6.2 - 9.3 mi

Top 0.8%
×3story building
+67ft-78ft

Overall

235

Males

208

M18-39

208

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

321

Males

292

M18-39

292

20K→Half

12.4 - 13.1 mi

Top 1.0%
×2story building
+19ft-37ft

Overall

282

Males

257

M18-39

257

Half→25K

13.1 - 15.5 mi

Top 0.7%
×4story building
+66ft-88ft

Overall

195

Males

172

M18-39

172

25K→30K

15.5 - 18.6 mi

Top 0.6%
×9story building
+181ft-148ft

Overall

165

Males

145

M18-39

145

30K→20M

18.6 - 20.0 mi

Top 0.7%
×5story building
+64ft-50ft

Overall

204

Males

186

M18-39

186

20M→21M

20.0 - 21.0 mi

Top 0.4%
×8story building
+106ft-24ft

Overall

126

Males

118

M18-39

118

21M→35K

21.0 - 21.8 mi

Top 0.8%
×7story building
+17ft-86ft

Overall

219

Males

199

M18-39

199

35K→23M

21.8 - 23.0 mi

Top 0.4%
×5story building
+23ft-63ft

Overall

114

Males

106

M18-39

106

23M→24M

23.0 - 24.0 mi

Top 0.4%
×6story building
+12ft-82ft

Overall

102

Males

96

M18-39

96

24M→40K

24.0 - 24.9 mi

Top 0.3%
×1story
+6ft-20ft

Overall

88

Males

83

M18-39

83

40K→25.2M

24.9 - 25.2 mi

Top 0.4%
×1story
+13ft-16ft

Overall

108

Males

101

M18-39

101

25.2M→Finish

25.2 - 26.2 mi

Top 0.4%
×2story building
+22ft-21ft

Overall

110

Males

105

M18-39

105

Passing Analysis

Category:
Athletes Passed
192
Passed By
34
Net Change
+158
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#308
5K → 10K423+39#308#269
10K → 15K153+12#269#257
15K → 20K1020-10#257#267
20K → Half20+2#267#265
Half → 25K253+22#265#243
25K → 30K290+29#243#214
30K → 20M121+11#214#203
20M → 21M140+14#203#189
21M → 35K23-1#189#190
35K → 23M141+13#190#177
23M → 24M80+8#177#169
24M → 40K80+8#169#161
40K → 25.2M20+2#161#159
25.2M → Finish90+9#159#150
TOTALS19234+158
📊

Passing Visuals

Category:
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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