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BOSTON MARATHON 2025

Alexander Slocum

Bib: 29612•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:31
Rank: #27265
Start → 5K
33:31 | 10:47/mi
10K· 6.21 mi
1:08:08
Rank: #27268 (-3)
5K → 10K
34:37 | 11:09/mi
15K· 9.32 mi
1:43:41
Rank: #27232 (+36)
10K → 15K
35:33 | 11:27/mi
20K· 12.43 mi
2:20:26
Rank: #27152 (+80)
15K → 20K
36:45 | 11:50/mi
Half· 13.11 mi
2:28:17
Rank: #27151 (+1)
20K → Half
7:51 | 11:30/mi
25K· 15.53 mi
2:57:58
Rank: #27078 (+73)
Half → 25K
29:41 | 12:15/mi
30K· 18.64 mi
3:38:28
Rank: #27035 (+43)
25K → 30K
40:30 | 13:02/mi
20M
3:56:50
Rank: #27032 (+3)
30K → 20M
18:22 | 13:31/mi
21M
4:11:41
Rank: #27054 (-22)
20M → 21M
14:51 | 14:51/mi
35K· 21.75 mi
4:22:31
Rank: #27100 (-46)
21M → 35K
10:50 | 14:29/mi
23M
4:40:33
Rank: #27150 (-50)
35K → 23M
18:02 | 14:24/mi
24M
4:55:00
Rank: #27210 (-60)
23M → 24M
14:27 | 14:27/mi
40K· 24.85 mi
5:07:32
Rank: #27243 (-33)
24M → 40K
12:32 | 14:40/mi
25.2M
5:13:02
Rank: #27265 (-22)
40K → 25.2M
5:30 | 15:57/mi
Finish· 26.22 mi
5:26:58
Rank: #27319 (-54)
25.2M → Finish
13:56 | 13:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:28:17
Pace11:19 /mi
2nd Half
Distance13.11 mi
Time2:58:41
Pace13:38 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3033:3110:4733:31
10:47
-
10K
6.21 mi12:27:071:08:0810:5834:37
11:09
+0:22
15K
9.32 mi13:02:401:43:4111:0735:33
11:27
+0:18
20K
12.43 mi13:39:252:20:2611:1836:45
11:50
+0:23
Half
13.11 mi13:47:162:28:1711:197:51
11:30
-0:20
25K
15.53 mi14:16:572:57:5811:2729:41
12:15
+0:45
30K
18.64 mi14:57:273:38:2811:4340:30
13:02
+0:47
20M
20.00 mi15:15:493:56:5011:5018:22
13:31
+0:29
21M
21.00 mi15:30:404:11:4111:5914:51
14:51
+1:20
35K
21.75 mi15:41:304:22:3112:0410:50
14:29
-0:22
23M
23.00 mi15:59:324:40:3312:1218:02
14:24
-0:05
24M
24.00 mi16:13:594:55:0012:1814:27
14:27
+0:03
40K
24.85 mi16:26:315:07:3212:2212:32
14:40
+0:13
25.2M
25.20 mi16:32:015:13:0212:255:30
15:57
+1:17
Finish
26.22 mi16:45:575:26:5812:2913:56
13:40
-2:17

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

10:47 /mi

Average Pace

12:29 /mi

Slowest Pace

15:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:58

54% of race

Time at Steady Pace

1:12:48

22% of race

Time at Slower Pace

1:16:12

23% of race

Average Pace: 12:28 /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 mi11:52:3033:3110:4733:31
10:47
#27265
10K
6.21 mi12:27:071:08:0810:5834:37
11:09
#27268
15K
9.32 mi13:02:401:43:4111:0735:33
11:27
#27232
20K
12.43 mi13:39:252:20:2611:1836:45
11:50
#27152
Half
13.11 mi13:47:162:28:1711:197:51
11:30
#27151
25K
15.53 mi14:16:572:57:5811:2729:41
12:15
#27078
30K
18.64 mi14:57:273:38:2811:4340:30
13:02
#27035
20M
20.00 mi15:15:493:56:5011:5018:22
13:31
#27032
21M
21.00 mi15:30:404:11:4111:5914:51
14:51
#27054
35K
21.75 mi15:41:304:22:3112:0410:50
14:29
#27100
23M
23.00 mi15:59:324:40:3312:1218:02
14:24
#27150
24M
24.00 mi16:13:594:55:0012:1814:27
14:27
#27210
40K
24.85 mi16:26:315:07:3212:2212:32
14:40
#27243
25.2M
25.20 mi16:32:015:13:0212:255:30
15:57
#27265
Finish
26.22 mi16:45:575:26:5812:2913:56
13:40
#27319
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi27265157091570927190(Top 96%)15637(Top 97%)15637(Top 1242%)
10K6.21 mi3.10 mi27268-315683+2615683+2627226(Top 96%)15661(Top 97%)15661(Top 1244%)
15K9.32 mi3.11 mi27232+3615674+915674+927190(Top 96%)15637(Top 97%)15637(Top 1242%)
20K12.43 mi3.11 mi27152+8015630+4415630+4426966(Top 95%)15525(Top 96%)15525(Top 1233%)
Half13.11 mi0.68 mi27151+115629+115629+127067(Top 95%)15542(Top 97%)15542(Top 1234%)
25K15.53 mi2.42 mi27078+7315585+4415585+4426679(Top 94%)15374(Top 95%)15374(Top 1221%)
30K18.64 mi3.11 mi27035+4315555+3015555+3026721(Top 94%)15307(Top 95%)15307(Top 1216%)
20M20.00 mi1.36 mi27032+315541+1415541+1426922(Top 95%)15340(Top 95%)15340(Top 1218%)
21M21.00 mi1.00 mi27054-2215540+115540+127030(Top 95%)15380(Top 95%)15380(Top 1222%)
35K21.75 mi0.75 mi27100-4615554-1415554-1427913(Top 98%)15796(Top 98%)15796(Top 1255%)
23M23.00 mi1.25 mi27150-5015567-1315567-1327600(Top 97%)15626(Top 97%)15626(Top 1241%)
24M24.00 mi1.00 mi27210-6015582-1515582-1527857(Top 98%)15740(Top 98%)15740(Top 1250%)
40K24.85 mi0.85 mi27243-3315594-1215594-1227596(Top 97%)15610(Top 97%)15610(Top 1240%)
25.2M25.20 mi0.35 mi27265-2215599-515599-527688(Top 97%)15642(Top 97%)15642(Top 1242%)
Finish26.22 mi1.02 mi27319-5415618-1915618-1927928(Top 98%)15800(Top 98%)15800(Top 1255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

27190

Males

15637

M60-64

15637

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

27226

Males

15661

M60-64

15661

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

27190

Males

15637

M60-64

15637

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

26966

Males

15525

M60-64

15525

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

27067

Males

15542

M60-64

15542

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

26679

Males

15374

M60-64

15374

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26721

Males

15307

M60-64

15307

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

26922

Males

15340

M60-64

15340

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

27030

Males

15380

M60-64

15380

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

27913

Males

15796

M60-64

15796

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

27600

Males

15626

M60-64

15626

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

27857

Males

15740

M60-64

15740

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27596

Males

15610

M60-64

15610

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

27688

Males

15642

M60-64

15642

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

27928

Males

15800

M60-64

15800

Passing Analysis

Category:
Athletes Passed
726
Passed By
780
Net Change
-54
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27265
5K → 10K141144-3#27265#27268
10K → 15K12791+36#27268#27232
15K → 20K13454+80#27232#27152
20K → Half1918+1#27152#27151
Half → 25K11037+73#27151#27078
25K → 30K9855+43#27078#27035
30K → 20M4037+3#27035#27032
20M → 21M1335-22#27032#27054
21M → 35K652-46#27054#27100
35K → 23M1262-50#27100#27150
23M → 24M767-60#27150#27210
24M → 40K942-33#27210#27243
40K → 25.2M224-22#27243#27265
25.2M → Finish862-54#27265#27319
TOTALS726780-54
📊

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