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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Marcos De Sa

Bib: 29441 •M •Age: N/A

NH

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M45-49)
#0 / 2413
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
24:23
3.11 mi
Rank: #15819
Start → 5K
24:23 | 7:51/mi
10K
48:59
6.21 mi
Rank: #16157 (-338)
5K → 10K
24:36 | 7:56/mi
15K
1:14:18
9.32 mi
Rank: #16832 (-675)
10K → 15K
25:19 | 8:09/mi
20K
1:39:54
12.43 mi
Rank: #17089 (-257)
15K → 20K
25:36 | 8:15/mi
HALF
1:45:22
13.11 mi
Rank: #17099 (-10)
20K → HALF
5:28 | 8:02/mi
25K
2:05:46
15.53 mi
Rank: #17242 (-143)
HALF → 25K
20:24 | 8:25/mi
30K
2:33:28
18.64 mi
Rank: #17598 (-356)
25K → 30K
27:42 | 8:55/mi
20M
2:45:50
20.00 mi
Rank: #17743 (-145)
30K → 20M
12:22 | 9:07/mi
21M
2:55:35
21.00 mi
Rank: #17856 (-113)
20M → 21M
9:45 | 9:45/mi
35K
3:02:05
21.75 mi
Rank: #17860 (-4)
21M → 35K
6:30 | 8:42/mi
23M
3:13:38
23.00 mi
Rank: #17948 (-88)
35K → 23M
11:33 | 9:14/mi
24M
3:22:45
24.00 mi
Rank: #18058 (-110)
23M → 24M
9:07 | 9:07/mi
40K
3:30:41
24.85 mi
Rank: #18126 (-68)
24M → 40K
7:56 | 9:17/mi
25.2M
3:34:06
25.20 mi
Rank: #18145 (-19)
40K → 25.2M
3:25 | 9:55/mi
FINISH
3:42:34
26.22 mi
Rank: #18091 (+54)
25.2M → FINISH
8:28 | 8:19/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:22
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:57:12
Pace8:57 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1524:237:5124:23
7:51
-
10K
6.21 mi12:12:5148:597:5324:36
7:56
+0:05
15K
9.32 mi12:38:101:14:187:5925:19
8:09
+0:13
20K
12.43 mi13:03:461:39:548:0325:36
8:15
+0:06
HALF
13.11 mi13:09:141:45:228:035:28
8:02
-0:13
25K
15.53 mi13:29:382:05:468:0620:24
8:25
+0:23
30K
18.64 mi13:57:202:33:288:1427:42
8:55
+0:30
20M
20.00 mi14:09:422:45:508:1812:22
9:07
+0:12
21M
21.00 mi14:19:272:55:358:229:45
9:45
+0:38
35K
21.75 mi14:25:573:02:058:236:30
8:42
-1:03
23M
23.00 mi14:37:303:13:388:2611:33
9:14
+0:32
24M
24.00 mi14:46:373:22:458:279:07
9:07
-0:07
40K
24.85 mi14:54:333:30:418:297:56
9:17
+0:10
25.2M
25.20 mi14:57:583:34:068:303:25
9:55
+0:38
FINISH
26.22 mi15:06:263:42:348:308:28
8:19
-1:36

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

7:51 /mi

Average Pace

8:30 /mi

Slowest Pace

9:55 /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

1:53:50

51% of race

Time at Steady Pace

54:36

25% of race

Time at Slower Pace

54:08

24% of race

Average Pace: 8:29 /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 mi11:48:1524:237:5124:23
7:51
#15819
10K
6.21 mi12:12:5148:597:5324:36
7:56
#16157
15K
9.32 mi12:38:101:14:187:5925:19
8:09
#16832
20K
12.43 mi13:03:461:39:548:0325:36
8:15
#17089
HALF
13.11 mi13:09:141:45:228:035:28
8:02
#17099
25K
15.53 mi13:29:382:05:468:0620:24
8:25
#17242
30K
18.64 mi13:57:202:33:288:1427:42
8:55
#17598
20M
20.00 mi14:09:422:45:508:1812:22
9:07
#17743
21M
21.00 mi14:19:272:55:358:229:45
9:45
#17856
35K
21.75 mi14:25:573:02:058:236:30
8:42
#17860
23M
23.00 mi14:37:303:13:388:2611:33
9:14
#17948
24M
24.00 mi14:46:373:22:458:279:07
9:07
#18058
40K
24.85 mi14:54:333:30:418:297:56
9:17
#18126
25.2M
25.20 mi14:57:583:34:068:303:25
9:55
#18145
FINISH
26.22 mi15:06:263:42:348:308:28
8:19
#18091
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi15819105601056017987(Top 62%)11443(Top 70%)11443(Top 474%)
10K6.21 mi3.10 mi16157-33810657-9710657-9716613(Top 57%)10862(Top 66%)10862(Top 450%)
15K9.32 mi3.11 mi16832-67510939-28210939-28217987(Top 62%)11443(Top 70%)11443(Top 474%)
20K12.43 mi3.11 mi17089-25711035-9611035-9617736(Top 61%)11306(Top 69%)11306(Top 469%)
HALF13.11 mi0.68 mi17099-1011039-411039-417226(Top 59%)11121(Top 68%)11121(Top 461%)
25K15.53 mi2.42 mi17242-14311095-5611095-5618054(Top 62%)11390(Top 70%)11390(Top 472%)
30K18.64 mi3.11 mi17598-35611235-14011235-14019151(Top 66%)11775(Top 72%)11775(Top 488%)
20M20.00 mi1.36 mi17743-14511265-3011265-3019403(Top 67%)11836(Top 72%)11836(Top 491%)
21M21.00 mi1.00 mi17856-11311291-2611291-2619550(Top 67%)11860(Top 73%)11860(Top 492%)
35K21.75 mi0.75 mi17860-411278+1311278+1318552(Top 64%)11299(Top 69%)11299(Top 468%)
23M23.00 mi1.25 mi17948-8811283-511283-519536(Top 67%)11712(Top 72%)11712(Top 485%)
24M24.00 mi1.00 mi18058-11011316-3311316-3319925(Top 69%)11831(Top 72%)11831(Top 490%)
40K24.85 mi0.85 mi18126-6811333-1711333-1719565(Top 67%)11628(Top 71%)11628(Top 482%)
25.2M25.20 mi0.35 mi18145-1911334-111334-118999(Top 65%)11365(Top 70%)11365(Top 471%)
FINISH26.22 mi1.02 mi18091+5411298+3611298+3617080(Top 59%)10460(Top 64%)10460(Top 433%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21
+97ft-345ft

Overall

17987

Males

11443

M45-49

11443

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16613

Males

10862

M45-49

10862

10K→15K

6.2 - 9.3 mi

Top 62%
×3
+67ft-78ft

Overall

17987

Males

11443

M45-49

11443

15K→20K

9.3 - 12.4 mi

Top 61%
×5
+106ft-86ft

Overall

17736

Males

11306

M45-49

11306

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

17226

Males

11121

M45-49

11121

HALF→25K

13.1 - 15.5 mi

Top 62%
×4
+66ft-88ft

Overall

18054

Males

11390

M45-49

11390

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19151

Males

11775

M45-49

11775

30K→20M

18.6 - 20.0 mi

Top 67%
×5
+64ft-50ft

Overall

19403

Males

11836

M45-49

11836

20M→21M

20.0 - 21.0 mi

Top 67%
×8
+106ft-24ft

Overall

19550

Males

11860

M45-49

11860

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18552

Males

11299

M45-49

11299

35K→23M

21.8 - 23.0 mi

Top 67%
×5
+23ft-63ft

Overall

19536

Males

11712

M45-49

11712

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19925

Males

11831

M45-49

11831

24M→40K

24.0 - 24.9 mi

Top 67%
×1
+6ft-20ft

Overall

19565

Males

11628

M45-49

11628

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1
+13ft-16ft

Overall

18999

Males

11365

M45-49

11365

25.2M→FINISH

25.2 - 26.2 mi

Top 59%
×2
+22ft-21ft

Overall

17080

Males

10460

M45-49

10460

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
959
Passed By
1958
Net Change
-2272
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15819
5K → 10K154200-338#15819#16157
10K → 15K50200-675#16157#16832
15K → 20K112200-257#16832#17089
20K → HALF3242-10#17089#17099
HALF → 25K93200-143#17099#17242
25K → 30K95200-356#17242#17598
30K → 20M46191-145#17598#17743
20M → 21M51164-113#17743#17856
21M → 35K5862-4#17856#17860
35K → 23M70158-88#17860#17948
23M → 24M38148-110#17948#18058
24M → 40K48116-68#18058#18126
40K → 25.2M2039-19#18126#18145
25.2M → FINISH9238+54#18145#18091
TOTALS9591958-2272
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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