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BOSTON MARATHON 2025

Heyder Alfonso-Camelo

Bib: 7438•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M40-44)
#0 / 2247
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:37
Rank: #2531
Start → 5K
19:37 | 6:19/mi
10K· 6.21 mi
39:49
Rank: #3132 (-601)
5K → 10K
20:12 | 6:30/mi
15K· 9.32 mi
59:43
Rank: #3054 (+78)
10K → 15K
19:54 | 6:24/mi
20K· 12.43 mi
1:20:10
Rank: #3170 (-116)
15K → 20K
20:27 | 6:35/mi
Half· 13.11 mi
1:24:35
Rank: #3187 (-17)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:40:25
Rank: #3156 (+31)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:02:22
Rank: #3417 (-261)
25K → 30K
21:57 | 7:04/mi
20M
2:12:16
Rank: #3565 (-148)
30K → 20M
9:54 | 7:17/mi
21M
2:20:29
Rank: #3791 (-226)
20M → 21M
8:13 | 8:13/mi
35K· 21.75 mi
2:26:20
Rank: #4028 (-237)
21M → 35K
5:51 | 7:49/mi
23M
2:37:01
Rank: #4607 (-579)
35K → 23M
10:41 | 8:32/mi
24M
2:45:16
Rank: #5027 (-420)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
2:52:17
Rank: #5198 (-171)
24M → 40K
7:01 | 8:12/mi
25.2M
2:55:39
Rank: #5308 (-110)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:04:32
Rank: #5637 (-329)
25.2M → Finish
8:53 | 8:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:35
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:39:57
Pace7:37 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1619:376:1919:37
6:19
-
10K
6.21 mi10:45:2839:496:2420:12
6:30
+0:11
15K
9.32 mi11:05:2259:436:2419:54
6:24
-0:06
20K
12.43 mi11:25:491:20:106:2720:27
6:35
+0:11
Half
13.11 mi11:30:141:24:356:274:25
6:28
-0:07
25K
15.53 mi11:46:041:40:256:2815:50
6:32
+0:04
30K
18.64 mi12:08:012:02:226:3421:57
7:04
+0:32
20M
20.00 mi12:17:552:12:166:379:54
7:17
+0:13
21M
21.00 mi12:26:082:20:296:418:13
8:13
+0:56
35K
21.75 mi12:31:592:26:206:445:51
7:49
-0:24
23M
23.00 mi12:42:402:37:016:5010:41
8:32
+0:43
24M
24.00 mi12:50:552:45:166:538:15
8:15
-0:17
40K
24.85 mi12:57:562:52:176:567:01
8:12
-0:03
25.2M
25.20 mi13:01:182:55:396:583:22
9:46
+1:34
Finish
26.22 mi13:10:113:04:327:038:53
8:43
-1:03

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

6:19 /mi

Average Pace

7:03 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:25

54% of race

Time at Steady Pace

31:51

17% of race

Time at Slower Pace

52:16

28% of race

Average Pace: 7:02 /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 mi10:25:1619:376:1919:37
6:19
#2531
10K
6.21 mi10:45:2839:496:2420:12
6:30
#3132
15K
9.32 mi11:05:2259:436:2419:54
6:24
#3054
20K
12.43 mi11:25:491:20:106:2720:27
6:35
#3170
Half
13.11 mi11:30:141:24:356:274:25
6:28
#3187
25K
15.53 mi11:46:041:40:256:2815:50
6:32
#3156
30K
18.64 mi12:08:012:02:226:3421:57
7:04
#3417
20M
20.00 mi12:17:552:12:166:379:54
7:17
#3565
21M
21.00 mi12:26:082:20:296:418:13
8:13
#3791
35K
21.75 mi12:31:592:26:206:445:51
7:49
#4028
23M
23.00 mi12:42:402:37:016:5010:41
8:32
#4607
24M
24.00 mi12:50:552:45:166:538:15
8:15
#5027
40K
24.85 mi12:57:562:52:176:567:01
8:12
#5198
25.2M
25.20 mi13:01:182:55:396:583:22
9:46
#5308
Finish
26.22 mi13:10:113:04:327:038:53
8:43
#5637
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2531241224122989(Top 11%)2848(Top 18%)2848(Top 127%)
10K6.21 mi3.10 mi3132-6012979-5672979-5673747(Top 13%)3536(Top 22%)3536(Top 157%)
15K9.32 mi3.11 mi3054+782907+722907+722989(Top 11%)2848(Top 18%)2848(Top 127%)
20K12.43 mi3.11 mi3170-1163019-1123019-1123603(Top 13%)3407(Top 21%)3407(Top 152%)
Half13.11 mi0.68 mi3187-173036-173036-173562(Top 13%)3378(Top 21%)3378(Top 150%)
25K15.53 mi2.42 mi3156+313008+283008+283063(Top 11%)2908(Top 18%)2908(Top 129%)
30K18.64 mi3.11 mi3417-2613232-2243232-2245118(Top 18%)4635(Top 29%)4635(Top 206%)
20M20.00 mi1.36 mi3565-1483365-1333365-1335701(Top 20%)4981(Top 31%)4981(Top 222%)
21M21.00 mi1.00 mi3791-2263564-1993564-1998653(Top 30%)6617(Top 41%)6617(Top 294%)
35K21.75 mi0.75 mi4028-2373763-1993763-19910917(Top 38%)7800(Top 48%)7800(Top 347%)
23M23.00 mi1.25 mi4607-5794247-4844247-48413483(Top 47%)8919(Top 55%)8919(Top 397%)
24M24.00 mi1.00 mi5027-4204595-3484595-34812870(Top 45%)8574(Top 53%)8574(Top 382%)
40K24.85 mi0.85 mi5198-1714727-1324727-13211552(Top 41%)7830(Top 49%)7830(Top 348%)
25.2M25.20 mi0.35 mi5308-1104812-854812-8515822(Top 56%)9759(Top 61%)9759(Top 434%)
Finish26.22 mi1.02 mi5637-3295050-2385050-23817534(Top 62%)10637(Top 66%)10637(Top 473%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2989

Males

2848

M40-44

2848

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3747

Males

3536

M40-44

3536

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2989

Males

2848

M40-44

2848

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3603

Males

3407

M40-44

3407

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3562

Males

3378

M40-44

3378

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3063

Males

2908

M40-44

2908

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5118

Males

4635

M40-44

4635

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5701

Males

4981

M40-44

4981

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8653

Males

6617

M40-44

6617

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10917

Males

7800

M40-44

7800

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

13483

Males

8919

M40-44

8919

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12870

Males

8574

M40-44

8574

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11552

Males

7830

M40-44

7830

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15822

Males

9759

M40-44

9759

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17534

Males

10637

M40-44

10637

Passing Analysis

Category:
Athletes Passed
438
Passed By
3544
Net Change
-3106
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2531
5K → 10K12613-601#2531#3132
10K → 15K12345+78#3132#3054
15K → 20K53169-116#3054#3170
20K → Half926-17#3170#3187
Half → 25K8352+31#3187#3156
25K → 30K54315-261#3156#3417
30K → 20M30178-148#3417#3565
20M → 21M12238-226#3565#3791
21M → 35K8245-237#3791#4028
35K → 23M12591-579#4028#4607
23M → 24M9429-420#4607#5027
24M → 40K24195-171#5027#5198
40K → 25.2M3113-110#5198#5308
25.2M → Finish6335-329#5308#5637
TOTALS4383544-3106
📊

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