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BOSTON MARATHON 2025

Brad Alexander

Bib: 4662•M

MS

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:44
Rank: #2768
Start → 5K
6:21/mi
19:44 split
10K· 6.21 mi
39:37
Rank: #2889 (-121)
5K → 10K
6:24/mi
19:53 split
15K· 9.32 mi
59:23
Rank: #2819 (+70)
10K → 15K
6:22/mi
19:46 split
20K· 12.43 mi
1:19:19
Rank: #2748 (+71)
15K → 20K
6:25/mi
19:56 split
Half· 13.11 mi
1:23:31
Rank: #2680 (+68)
20K → Half
6:09/mi
4:12 split
25K· 15.53 mi
1:38:58
Rank: #2581 (+99)
Half → 25K
6:22/mi
15:27 split
30K· 18.64 mi
1:59:00
Rank: #2355 (+226)
25K → 30K
6:27/mi
20:02 split
20M
2:07:56
Rank: #2300 (+55)
30K → 20M
6:34/mi
8:56 split
21M
2:14:46
Rank: #2234 (+66)
20M → 21M
6:50/mi
6:50 split
35K· 21.75 mi
2:19:23
Rank: #2175 (+59)
21M → 35K
6:10/mi
4:37 split
23M
2:27:39
Rank: #2121 (+54)
35K → 23M
6:36/mi
8:16 split
24M
2:33:54
Rank: #2021 (+100)
23M → 24M
6:15/mi
6:15 split
40K· 24.85 mi
2:39:23
Rank: #1971 (+50)
24M → 40K
6:25/mi
5:29 split
25.2M
2:41:45
Rank: #1941 (+30)
40K → 25.2M
6:52/mi
2:22 split
Finish· 26.22 mi
2:47:52
Rank: #1856 (+85)
25.2M → Finish
6:00/mi
6:07 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:23:31
Pace6:22 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:21
Pace6:26 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5919:446:2119:44
6:21
-
10K
6.21 mi10:42:5239:376:2319:53
6:24
+0:03
15K
9.32 mi11:02:3859:236:2219:46
6:22
-0:02
20K
12.43 mi11:22:341:19:196:2319:56
6:25
+0:03
Half
13.11 mi11:26:461:23:316:224:12
6:09
-0:16
25K
15.53 mi11:42:131:38:586:2215:27
6:22
+0:13
30K
18.64 mi12:02:151:59:006:2320:02
6:27
+0:05
20M
20.00 mi12:11:112:07:566:248:56
6:34
+0:07
21M
21.00 mi12:18:012:14:466:256:50
6:50
+0:16
35K
21.75 mi12:22:382:19:236:254:37
6:10
-0:40
23M
23.00 mi12:30:542:27:396:258:16
6:36
+0:26
24M
24.00 mi12:37:092:33:546:256:15
6:15
-0:21
40K
24.85 mi12:42:382:39:236:255:29
6:25
+0:10
25.2M
25.20 mi12:45:002:41:456:252:22
6:52
+0:27
Finish
26.22 mi12:51:072:47:526:246:07
6:00
-0:52

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

6:00 /mi

Average Pace

6:24 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:40

95% of race

Time at Steady Pace

9:12

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:24 /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 mi10:22:5919:446:2119:44
6:21
#2768
10K
6.21 mi10:42:5239:376:2319:53
6:24
#2889
15K
9.32 mi11:02:3859:236:2219:46
6:22
#2819
20K
12.43 mi11:22:341:19:196:2319:56
6:25
#2748
Half
13.11 mi11:26:461:23:316:224:12
6:09
#2680
25K
15.53 mi11:42:131:38:586:2215:27
6:22
#2581
30K
18.64 mi12:02:151:59:006:2320:02
6:27
#2355
20M
20.00 mi12:11:112:07:566:248:56
6:34
#2300
21M
21.00 mi12:18:012:14:466:256:50
6:50
#2234
35K
21.75 mi12:22:382:19:236:254:37
6:10
#2175
23M
23.00 mi12:30:542:27:396:258:16
6:36
#2121
24M
24.00 mi12:37:092:33:546:256:15
6:15
#2021
40K
24.85 mi12:42:382:39:236:255:29
6:25
#1971
25.2M
25.20 mi12:45:002:41:456:252:22
6:52
#1941
Finish
26.22 mi12:51:072:47:526:246:07
6:00
#1856
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2768263826382706(Top 10%)2577(Top 16%)2577(Top 46%)
10K6.21 mi3.10 mi2889-1212752-1142752-1143047(Top 11%)2901(Top 18%)2901(Top 51%)
15K9.32 mi3.11 mi2819+702688+642688+642706(Top 10%)2577(Top 16%)2577(Top 46%)
20K12.43 mi3.11 mi2748+712620+682620+682615(Top 9%)2492(Top 15%)2492(Top 44%)
Half13.11 mi0.68 mi2680+682556+642556+641798(Top 6%)1714(Top 11%)1714(Top 30%)
25K15.53 mi2.42 mi2581+992463+932463+932222(Top 8%)2115(Top 13%)2115(Top 37%)
30K18.64 mi3.11 mi2355+2262249+2142249+2141770(Top 6%)1681(Top 10%)1681(Top 30%)
20M20.00 mi1.36 mi2300+552194+552194+551939(Top 7%)1836(Top 11%)1836(Top 33%)
21M21.00 mi1.00 mi2234+662132+622132+621654(Top 6%)1563(Top 10%)1563(Top 28%)
35K21.75 mi0.75 mi2175+592074+582074+581161(Top 4%)1096(Top 7%)1096(Top 19%)
23M23.00 mi1.25 mi2121+542019+552019+551857(Top 7%)1738(Top 11%)1738(Top 31%)
24M24.00 mi1.00 mi2021+1001918+1011918+1011178(Top 4%)1105(Top 7%)1105(Top 20%)
40K24.85 mi0.85 mi1971+501869+491869+491318(Top 5%)1225(Top 8%)1225(Top 22%)
25.2M25.20 mi0.35 mi1941+301839+301839+301167(Top 4%)1077(Top 7%)1077(Top 19%)
Finish26.22 mi1.02 mi1856+851756+831756+83937(Top 3%)882(Top 5%)882(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2706

Males

2577

M18-39

2577

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3047

Males

2901

M18-39

2901

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2706

Males

2577

M18-39

2577

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2615

Males

2492

M18-39

2492

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1798

Males

1714

M18-39

1714

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2222

Males

2115

M18-39

2115

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1770

Males

1681

M18-39

1681

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1939

Males

1836

M18-39

1836

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1654

Males

1563

M18-39

1563

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1161

Males

1096

M18-39

1096

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1857

Males

1738

M18-39

1738

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1178

Males

1105

M18-39

1105

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1318

Males

1225

M18-39

1225

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1167

Males

1077

M18-39

1077

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

937

Males

882

M18-39

882

Passing Analysis

Category:
Athletes Passed
1280
Passed By
368
Net Change
+912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2768
5K → 10K87208-121#2768#2889
10K → 15K11545+70#2889#2819
15K → 20K11847+71#2819#2748
20K → Half680+68#2748#2680
Half → 25K11415+99#2680#2581
25K → 30K23711+226#2581#2355
30K → 20M6611+55#2355#2300
20M → 21M7610+66#2300#2234
21M → 35K590+59#2234#2175
35K → 23M628+54#2175#2121
23M → 24M1044+100#2121#2021
24M → 40K533+50#2021#1971
40K → 25.2M322+30#1971#1941
25.2M → Finish894+85#1941#1856
TOTALS1280368+912
📊

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