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BOSTON MARATHON 2025

Alex Horton

Bib: 2831•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Division (M18-39)
#0 / 5642
Top 39%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:59
Rank: #3328
Start → 5K
19:59 | 6:26/mi
10K· 6.21 mi
39:41
Rank: #2956 (+372)
5K → 10K
19:42 | 6:20/mi
15K· 9.32 mi
1:00:25
Rank: #3560 (-604)
10K → 15K
20:44 | 6:40/mi
20K· 12.43 mi
1:19:02
Rank: #2602 (+958)
15K → 20K
18:37 | 6:00/mi
Half· 13.11 mi
1:23:13
Rank: #2543 (+59)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:38:30
Rank: #2401 (+142)
Half → 25K
15:17 | 6:18/mi
30K· 18.64 mi
1:58:33
Rank: #2230 (+171)
25K → 30K
20:03 | 6:27/mi
20M
2:07:38
Rank: #2230
30K → 20M
9:05 | 6:41/mi
21M
2:14:39
Rank: #2209 (+21)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:19:31
Rank: #2199 (+10)
21M → 35K
4:52 | 6:30/mi
23M
2:28:48
Rank: #2365 (-166)
35K → 23M
9:17 | 7:25/mi
24M
2:36:34
Rank: #2590 (-225)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
2:43:33
Rank: #2809 (-219)
24M → 40K
6:59 | 8:10/mi
25.2M
2:46:35
Rank: #2893 (-84)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
2:54:01
Rank: #3008 (-115)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:13
Pace6:21 /mi
2nd Half
Distance13.11 mi
Time1:30:48
Pace6:56 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0419:596:2619:59
6:26
-
10K
6.21 mi10:40:4639:416:2319:42
6:20
-0:06
15K
9.32 mi11:01:301:00:256:2920:44
6:40
+0:20
20K
12.43 mi11:20:071:19:026:2218:37
6:00
-0:40
Half
13.11 mi11:24:181:23:136:214:11
6:08
+0:08
25K
15.53 mi11:39:351:38:306:2015:17
6:18
+0:10
30K
18.64 mi11:59:381:58:336:2220:03
6:27
+0:09
20M
20.00 mi12:08:432:07:386:239:05
6:41
+0:14
21M
21.00 mi12:15:442:14:396:257:01
7:01
+0:20
35K
21.75 mi12:20:362:19:316:254:52
6:30
-0:31
23M
23.00 mi12:29:532:28:486:289:17
7:25
+0:55
24M
24.00 mi12:37:392:36:346:317:46
7:46
+0:21
40K
24.85 mi12:44:382:43:336:356:59
8:10
+0:24
25.2M
25.20 mi12:47:402:46:356:373:02
8:48
+0:38
Finish
26.22 mi12:55:062:54:016:397:26
7:18
-1:30

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

6:39 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:48

13% of race

Time at Steady Pace

1:56:43

67% of race

Time at Slower Pace

34:30

20% of race

Average Pace: 6:38 /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 mi10:21:0419:596:2619:59
6:26
#3328
10K
6.21 mi10:40:4639:416:2319:42
6:20
#2956
15K
9.32 mi11:01:301:00:256:2920:44
6:40
#3560
20K
12.43 mi11:20:071:19:026:2218:37
6:00
#2602
Half
13.11 mi11:24:181:23:136:214:11
6:08
#2543
25K
15.53 mi11:39:351:38:306:2015:17
6:18
#2401
30K
18.64 mi11:59:381:58:336:2220:03
6:27
#2230
20M
20.00 mi12:08:432:07:386:239:05
6:41
#2230
21M
21.00 mi12:15:442:14:396:257:01
7:01
#2209
35K
21.75 mi12:20:362:19:316:254:52
6:30
#2199
23M
23.00 mi12:29:532:28:486:289:17
7:25
#2365
24M
24.00 mi12:37:392:36:346:317:46
7:46
#2590
40K
24.85 mi12:44:382:43:336:356:59
8:10
#2809
25.2M
25.20 mi12:47:402:46:356:373:02
8:48
#2893
Finish
26.22 mi12:55:062:54:016:397:26
7:18
#3008
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3328316031604822(Top 17%)4496(Top 28%)4496(Top 80%)
10K6.21 mi3.10 mi2956+3722811+3492811+3492674(Top 9%)2548(Top 16%)2548(Top 45%)
15K9.32 mi3.11 mi3560-6043374-5633374-5634822(Top 17%)4496(Top 28%)4496(Top 80%)
20K12.43 mi3.11 mi2602+9582483+8912483+891851(Top 3%)801(Top 5%)801(Top 14%)
Half13.11 mi0.68 mi2543+592429+542429+541672(Top 6%)1591(Top 10%)1591(Top 28%)
25K15.53 mi2.42 mi2401+1422291+1382291+1381873(Top 7%)1781(Top 11%)1781(Top 32%)
30K18.64 mi3.11 mi2230+1712125+1662125+1661786(Top 6%)1697(Top 11%)1697(Top 30%)
20M20.00 mi1.36 mi22302127-22127-22383(Top 8%)2250(Top 14%)2250(Top 40%)
21M21.00 mi1.00 mi2209+212107+202107+202314(Top 8%)2160(Top 13%)2160(Top 38%)
35K21.75 mi0.75 mi2199+102098+92098+92469(Top 9%)2302(Top 14%)2302(Top 41%)
23M23.00 mi1.25 mi2365-1662254-1562254-1566101(Top 21%)5017(Top 31%)5017(Top 89%)
24M24.00 mi1.00 mi2590-2252457-2032457-2039508(Top 33%)6900(Top 43%)6900(Top 122%)
40K24.85 mi0.85 mi2809-2192660-2032660-20311299(Top 40%)7691(Top 48%)7691(Top 136%)
25.2M25.20 mi0.35 mi2893-842737-772737-7710444(Top 37%)7136(Top 44%)7136(Top 126%)
Finish26.22 mi1.02 mi3008-1152836-992836-997682(Top 27%)5711(Top 35%)5711(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4822

Males

4496

M18-39

4496

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2674

Males

2548

M18-39

2548

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4822

Males

4496

M18-39

4496

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

851

Males

801

M18-39

801

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1672

Males

1591

M18-39

1591

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1873

Males

1781

M18-39

1781

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1786

Males

1697

M18-39

1697

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2383

Males

2250

M18-39

2250

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2314

Males

2160

M18-39

2160

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2469

Males

2302

M18-39

2302

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

6101

Males

5017

M18-39

5017

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9508

Males

6900

M18-39

6900

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11299

Males

7691

M18-39

7691

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10444

Males

7136

M18-39

7136

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7682

Males

5711

M18-39

5711

Passing Analysis

Category:
Athletes Passed
1925
Passed By
1605
Net Change
+320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3328
5K → 10K39220+372#3328#2956
10K → 15K10614-604#2956#3560
15K → 20K9580+958#3560#2602
20K → Half612+59#2602#2543
Half → 25K1475+142#2543#2401
25K → 30K18918+171#2401#2230
30K → 20M42420#2230#2230
20M → 21M5130+21#2230#2209
21M → 35K2414+10#2209#2199
35K → 23M18184-166#2199#2365
23M → 24M12237-225#2365#2590
24M → 40K5224-219#2590#2809
40K → 25.2M589-84#2809#2893
25.2M → Finish11126-115#2893#3008
TOTALS19251605+320
📊

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