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BOSTON MARATHON 2025

David Laiz Carrion

Bib: 31643•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
9:27/mi
29:23
↑ 97↓ 3451.5%
10K· 6.21 mi
10:05/mi
1:00:42
↑ 79↓ 1380.4%
15K· 9.32 mi
9:37/mi
1:30:36
↑ 67↓ 78
20K· 12.43 mi
10:08/mi
2:02:04
↑ 106↓ 860.1%
Half· 13.11 mi
9:57/mi
2:08:51
↑ 19↓ 370.5%
25K· 15.53 mi
11:14/mi
2:36:04
↑ 66↓ 880.2%
30K· 18.64 mi
11:54/mi
3:13:03
↑ 181↓ 1480.2%
20M
11:28/mi
3:28:38
↑ 64↓ 500.2%
21M
13:01/mi
3:41:39
↑ 106↓ 241.6%
35K· 21.75 mi
11:04/mi
3:49:56
↑ 17↓ 861.7%
23M
14:26/mi
4:08:00
↑ 23↓ 630.6%
24M
13:16/mi
4:21:16
↓ 821.3%
40K· 24.85 mi
12:31/mi
4:31:58
↓ 200.3%
25.2M
13:52/mi
4:36:45
↑ 13↓ 160.2%
Finish· 26.22 mi
11:21/mi
4:48:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:51
Pace9:50 /mi
2nd Half
Distance13.11 mi
Time2:39:28
Pace12:10 /mi
📊Positive Split: 23.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2029:239:2729:23
9:27
-
10K
6.21 mi12:24:391:00:429:4631:19
10:05
+0:38
15K
9.32 mi12:54:331:30:369:4329:54
9:37
-0:28
20K
12.43 mi13:26:012:02:049:4931:28
10:08
+0:31
Half
13.11 mi13:32:482:08:519:506:47
9:57
-0:11
25K
15.53 mi14:00:012:36:0410:0327:13
11:14
+1:17
30K
18.64 mi14:37:003:13:0310:2136:59
11:54
+0:40
20M
20.00 mi14:52:353:28:3810:2615:35
11:28
-0:26
21M
21.00 mi15:05:363:41:3910:3313:01
13:01
+1:33
35K
21.75 mi15:13:533:49:5610:348:17
11:04
-1:57
23M
23.00 mi15:31:574:08:0010:4718:04
14:26
+3:22
24M
24.00 mi15:45:134:21:1610:5313:16
13:16
-1:10
40K
24.85 mi15:55:554:31:5810:5710:42
12:31
-0:45
25.2M
25.20 mi16:00:424:36:4510:594:47
13:52
+1:21
Finish
26.22 mi16:12:164:48:1911:0011:34
11:21
-2:31

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

9:27 /mi

Average Pace

11:00 /mi

Slowest Pace

14:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:51

45% of race

Time at Steady Pace

1:39:38

35% of race

Time at Slower Pace

59:50

21% of race

Average Pace: 11:00 /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 mi11:53:2029:239:2729:23
9:27
#24101
10K
6.21 mi12:24:391:00:429:4631:19
10:05
#24896
15K
9.32 mi12:54:331:30:369:4329:54
9:37
#24630
20K
12.43 mi13:26:012:02:049:4931:28
10:08
#24587
Half
13.11 mi13:32:482:08:519:506:47
9:57
#24597
25K
15.53 mi14:00:012:36:0410:0327:13
11:14
#24812
30K
18.64 mi14:37:003:13:0310:2136:59
11:54
#24984
20M
20.00 mi14:52:353:28:3810:2615:35
11:28
#24942
21M
21.00 mi15:05:363:41:3910:3313:01
13:01
#24976
35K
21.75 mi15:13:533:49:5610:348:17
11:04
#24968
23M
23.00 mi15:31:574:08:0010:4718:04
14:26
#25193
24M
24.00 mi15:45:134:21:1610:5313:16
13:16
#25305
40K
24.85 mi15:55:554:31:5810:5710:42
12:31
#25324
25.2M
25.20 mi16:00:424:36:4510:594:47
13:52
#25349
Finish
26.22 mi16:12:164:48:1911:0011:34
11:21
#25367
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24101142911429124080(Top 85%)14303(Top 89%)14303(Top 717%)
10K6.21 mi3.10 mi24896-79514658-36714658-36725484(Top 90%)14908(Top 93%)14908(Top 747%)
15K9.32 mi3.11 mi24630+26614539+11914539+11924080(Top 85%)14303(Top 89%)14303(Top 717%)
20K12.43 mi3.11 mi24587+4314506+3314506+3324481(Top 86%)14445(Top 90%)14445(Top 724%)
Half13.11 mi0.68 mi24597-1014508-214508-224712(Top 87%)14535(Top 90%)14535(Top 728%)
25K15.53 mi2.42 mi24812-21514595-8714595-8725511(Top 90%)14867(Top 92%)14867(Top 745%)
30K18.64 mi3.11 mi24984-17214652-5714652-5725457(Top 90%)14742(Top 92%)14742(Top 739%)
20M20.00 mi1.36 mi24942+4214614+3814614+3824485(Top 86%)14207(Top 88%)14207(Top 712%)
21M21.00 mi1.00 mi24976-3414617-314617-325065(Top 88%)14402(Top 89%)14402(Top 722%)
35K21.75 mi0.75 mi24968+814610+714610+724363(Top 86%)14049(Top 87%)14049(Top 704%)
23M23.00 mi1.25 mi25193-22514690-8014690-8027615(Top 97%)15634(Top 97%)15634(Top 783%)
24M24.00 mi1.00 mi25305-11214733-4314733-4327119(Top 95%)15346(Top 95%)15346(Top 769%)
40K24.85 mi0.85 mi25324-1914739-614739-625673(Top 90%)14625(Top 91%)14625(Top 733%)
25.2M25.20 mi0.35 mi25349-2514748-914748-926141(Top 92%)14823(Top 92%)14823(Top 743%)
Finish26.22 mi1.02 mi25367-1814746+214746+225937(Top 91%)14749(Top 92%)14749(Top 739%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

24080

Males

14303

M50-54

14303

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25484

Males

14908

M50-54

14908

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

24080

Males

14303

M50-54

14303

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24481

Males

14445

M50-54

14445

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24712

Males

14535

M50-54

14535

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

25511

Males

14867

M50-54

14867

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25457

Males

14742

M50-54

14742

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24485

Males

14207

M50-54

14207

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

25065

Males

14402

M50-54

14402

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24363

Males

14049

M50-54

14049

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

27615

Males

15634

M50-54

15634

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

27119

Males

15346

M50-54

15346

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25673

Males

14625

M50-54

14625

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26141

Males

14823

M50-54

14823

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

25937

Males

14749

M50-54

14749

Passing Analysis

Category:
Athletes Passed
850
Passed By
2116
Net Change
-1266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24101
5K → 10K41836-795#24101#24896
10K → 15K29933+266#24896#24630
15K → 20K156113+43#24630#24587
20K → Half2232-10#24587#24597
Half → 25K47262-215#24597#24812
25K → 30K72244-172#24812#24984
30K → 20M7735+42#24984#24942
20M → 21M3771-34#24942#24976
21M → 35K3022+8#24976#24968
35K → 23M6231-225#24968#25193
23M → 24M16128-112#25193#25305
24M → 40K1938-19#25305#25324
40K → 25.2M631-25#25324#25349
25.2M → Finish2240-18#25349#25367
TOTALS8502116-1266
📊

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