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BOSTON MARATHON 2026

Carlos Leiva

Bib: 5031•M

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 22%
Gender (Male)
#0 / 16340
Top 34%
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
22:06
3.11 mi
Rank: #9432
Start → 5K
22:06 | 7:07/mi
10K
44:02
6.21 mi
Rank: #9232 (+200)
5K → 10K
21:56 | 7:04/mi
15K
1:05:37
9.32 mi
Rank: #8835 (+397)
10K → 15K
21:35 | 6:57/mi
20K
1:27:05
12.43 mi
Rank: #8416 (+419)
15K → 20K
21:28 | 6:55/mi
HALF
1:31:47
13.11 mi
Rank: #8384 (+32)
20K → HALF
4:42 | 6:54/mi
25K
1:48:36
15.53 mi
Rank: #8095 (+289)
HALF → 25K
16:49 | 6:57/mi
30K
2:09:59
18.64 mi
Rank: #7517 (+578)
25K → 30K
21:23 | 6:53/mi
20M
2:19:08
20.00 mi
Rank: #7191 (+326)
30K → 20M
9:09 | 6:45/mi
21M
2:26:09
21.00 mi
Rank: #6935 (+256)
20M → 21M
7:01 | 7:01/mi
35K
2:31:02
21.75 mi
Rank: #6815 (+120)
21M → 35K
4:53 | 6:32/mi
23M
2:39:21
23.00 mi
Rank: #6525 (+290)
35K → 23M
8:19 | 6:39/mi
24M
2:45:53
24.00 mi
Rank: #6364 (+161)
23M → 24M
6:32 | 6:32/mi
40K
2:51:48
24.85 mi
Rank: #6283 (+81)
24M → 40K
5:55 | 6:56/mi
25.2M
2:54:27
25.20 mi
Rank: #6267 (+16)
40K → 25.2M
2:39 | 7:42/mi
FINISH
3:01:35
26.22 mi
Rank: #6267
25.2M → FINISH
7:08 | 7:00/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:31:47
Pace7:01 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:29:48
Pace6:51 /mi
📊Negative Split: 2.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5222:067:0722:06
7:07
-
10K
6.21 mi10:47:4844:027:0621:56
7:04
-0:03
15K
9.32 mi11:09:231:05:377:0321:35
6:57
-0:07
20K
12.43 mi11:30:511:27:057:0121:28
6:55
-0:02
HALF
13.11 mi11:35:331:31:477:014:42
6:54
-0:01
25K
15.53 mi11:52:221:48:367:0016:49
6:57
+0:03
30K
18.64 mi12:13:452:09:596:5921:23
6:53
-0:04
20M
20.00 mi12:22:542:19:086:589:09
6:45
-0:08
21M
21.00 mi12:29:552:26:096:587:01
7:01
+0:16
35K
21.75 mi12:34:482:31:026:574:53
6:32
-0:29
23M
23.00 mi12:43:072:39:216:568:19
6:39
+0:07
24M
24.00 mi12:49:392:45:536:556:32
6:32
-0:07
40K
24.85 mi12:55:342:51:486:555:55
6:56
+0:24
25.2M
25.20 mi12:58:132:54:276:562:39
7:42
+0:46
FINISH
26.22 mi13:05:213:01:356:567:08
7:00
-0:42

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:32 /mi

Average Pace

6:56 /mi

Slowest Pace

7:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:58:56

99% of race

Time at Steady Pace

2:39

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:56 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:25:5222:067:0722:06
7:07
#9432
10K
6.21 mi10:47:4844:027:0621:56
7:04
#9232
15K
9.32 mi11:09:231:05:377:0321:35
6:57
#8835
20K
12.43 mi11:30:511:27:057:0121:28
6:55
#8416
HALF
13.11 mi11:35:331:31:477:014:42
6:54
#8384
25K
15.53 mi11:52:221:48:367:0016:49
6:57
#8095
30K
18.64 mi12:13:452:09:596:5921:23
6:53
#7517
20M
20.00 mi12:22:542:19:086:589:09
6:45
#7191
21M
21.00 mi12:29:552:26:096:587:01
7:01
#6935
35K
21.75 mi12:34:482:31:026:574:53
6:32
#6815
23M
23.00 mi12:43:072:39:216:568:19
6:39
#6525
24M
24.00 mi12:49:392:45:536:556:32
6:32
#6364
40K
24.85 mi12:55:342:51:486:555:55
6:56
#6283
25.2M
25.20 mi12:58:132:54:276:562:39
7:42
#6267
FINISH
26.22 mi13:05:213:01:356:567:08
7:00
#6267
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi9432778377838162(Top 28%)6966(Top 43%)6966(Top 122%)
10K6.21 mi3.10 mi9232+2007672+1117672+1119101(Top 31%)7556(Top 46%)7556(Top 132%)
15K9.32 mi3.11 mi8835+3977415+2577415+2578162(Top 28%)6966(Top 43%)6966(Top 122%)
20K12.43 mi3.11 mi8416+4197130+2857130+2857153(Top 25%)6260(Top 38%)6260(Top 109%)
HALF13.11 mi0.68 mi8384+327113+177113+177819(Top 27%)6707(Top 41%)6707(Top 117%)
25K15.53 mi2.42 mi8095+2896926+1876926+1876928(Top 24%)6060(Top 37%)6060(Top 106%)
30K18.64 mi3.11 mi7517+5786516+4106516+4105034(Top 17%)4555(Top 28%)4555(Top 80%)
20M20.00 mi1.36 mi7191+3266288+2286288+2283707(Top 13%)3437(Top 21%)3437(Top 60%)
21M21.00 mi1.00 mi6935+2566087+2016087+2013596(Top 12%)3294(Top 20%)3294(Top 58%)
35K21.75 mi0.75 mi6815+1205988+995988+993776(Top 13%)3467(Top 21%)3467(Top 61%)
23M23.00 mi1.25 mi6525+2905770+2185770+2183184(Top 11%)2940(Top 18%)2940(Top 51%)
24M24.00 mi1.00 mi6364+1615644+1265644+1263375(Top 12%)3066(Top 19%)3066(Top 54%)
40K24.85 mi0.85 mi6283+815575+695575+695012(Top 17%)4303(Top 26%)4303(Top 75%)
25.2M25.20 mi0.35 mi6267+165555+205555+206293(Top 22%)5096(Top 31%)5096(Top 89%)
FINISH26.22 mi1.02 mi62675543+125543+127519(Top 26%)5777(Top 35%)5777(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21
+97ft-345ft

Overall

8162

Males

6966

M18-39

6966

5K→10K

3.1 - 6.2 mi

Top 31%
×5
+79ft-138ft

Overall

9101

Males

7556

M18-39

7556

10K→15K

6.2 - 9.3 mi

Top 28%
×3
+67ft-78ft

Overall

8162

Males

6966

M18-39

6966

15K→20K

9.3 - 12.4 mi

Top 25%
×5
+106ft-86ft

Overall

7153

Males

6260

M18-39

6260

20K→HALF

12.4 - 13.1 mi

Top 27%
×2
+19ft-37ft

Overall

7819

Males

6707

M18-39

6707

HALF→25K

13.1 - 15.5 mi

Top 24%
×4
+66ft-88ft

Overall

6928

Males

6060

M18-39

6060

25K→30K

15.5 - 18.6 mi

Top 17%
×9
+181ft-148ft

Overall

5034

Males

4555

M18-39

4555

30K→20M

18.6 - 20.0 mi

Top 13%
×5
+64ft-50ft

Overall

3707

Males

3437

M18-39

3437

20M→21M

20.0 - 21.0 mi

Top 12%
×8
+106ft-24ft

Overall

3596

Males

3294

M18-39

3294

21M→35K

21.0 - 21.8 mi

Top 13%
×7
+17ft-86ft

Overall

3776

Males

3467

M18-39

3467

35K→23M

21.8 - 23.0 mi

Top 11%
×5
+23ft-63ft

Overall

3184

Males

2940

M18-39

2940

23M→24M

23.0 - 24.0 mi

Top 12%
×6
+12ft-82ft

Overall

3375

Males

3066

M18-39

3066

24M→40K

24.0 - 24.9 mi

Top 17%
×1
+6ft-20ft

Overall

5012

Males

4303

M18-39

4303

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1
+13ft-16ft

Overall

6293

Males

5096

M18-39

5096

25.2M→FINISH

25.2 - 26.2 mi

Top 26%
×2
+22ft-21ft

Overall

7519

Males

5777

M18-39

5777

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3437
Passed By
272
Net Change
+3165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9432
5K → 10K343143+200#9432#9232
10K → 15K42326+397#9232#8835
15K → 20K4234+419#8835#8416
20K → HALF419+32#8416#8384
HALF → 25K2945+289#8384#8095
25K → 30K5813+578#8095#7517
30K → 20M3260+326#7517#7191
20M → 21M2593+256#7191#6935
21M → 35K1200+120#6935#6815
35K → 23M2922+290#6815#6525
23M → 24M1643+161#6525#6364
24M → 40K887+81#6364#6283
40K → 25.2M3014+16#6283#6267
25.2M → FINISH53530#6267#6267
TOTALS3437272+3165
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing