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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Niels Leerkes

Bib: 4879 •M •Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
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
27:04
3.11 mi
Rank: #21252
Start → 5K
27:04 | 8:43/mi
10K
53:49
6.21 mi
Rank: #21099 (+153)
5K → 10K
26:45 | 8:37/mi
15K
1:20:02
9.32 mi
Rank: #20654 (+445)
10K → 15K
26:13 | 8:27/mi
20K
1:47:06
12.43 mi
Rank: #20588 (+66)
15K → 20K
27:04 | 8:43/mi
HALF
1:52:55
13.11 mi
Rank: #20579 (+9)
20K → HALF
5:49 | 8:32/mi
25K
2:13:54
15.53 mi
Rank: #20386 (+193)
HALF → 25K
20:59 | 8:40/mi
30K
2:41:38
18.64 mi
Rank: #20157 (+229)
25K → 30K
27:44 | 8:56/mi
20M
2:53:33
20.00 mi
Rank: #19985 (+172)
30K → 20M
11:55 | 8:47/mi
21M
3:02:36
21.00 mi
Rank: #19778 (+207)
20M → 21M
9:03 | 9:03/mi
35K
3:09:01
21.75 mi
Rank: #19712 (+66)
21M → 35K
6:25 | 8:35/mi
23M
3:19:55
23.00 mi
Rank: #19558 (+154)
35K → 23M
10:54 | 8:43/mi
24M
3:28:29
24.00 mi
Rank: #19466 (+92)
23M → 24M
8:34 | 8:34/mi
40K
3:36:06
24.85 mi
Rank: #19413 (+53)
24M → 40K
7:37 | 8:55/mi
25.2M
3:39:19
25.20 mi
Rank: #19361 (+52)
40K → 25.2M
3:13 | 9:20/mi
FINISH
3:48:03
26.22 mi
Rank: #19329 (+32)
25.2M → FINISH
8:44 | 8:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:55
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:55:08
Pace8:47 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:4527:048:4327:04
8:43
-
10K
6.21 mi11:55:3053:498:4026:45
8:37
-0:06
15K
9.32 mi12:21:431:20:028:3626:13
8:27
-0:10
20K
12.43 mi12:48:471:47:068:3827:04
8:43
+0:16
HALF
13.11 mi12:54:361:52:558:375:49
8:32
-0:11
25K
15.53 mi13:15:352:13:548:3820:59
8:40
+0:08
30K
18.64 mi13:43:192:41:388:4127:44
8:56
+0:16
20M
20.00 mi13:55:142:53:338:4111:55
8:47
-0:09
21M
21.00 mi14:04:173:02:368:429:03
9:03
+0:16
35K
21.75 mi14:10:423:09:018:426:25
8:35
-0:28
23M
23.00 mi14:21:363:19:558:4210:54
8:43
+0:08
24M
24.00 mi14:30:103:28:298:428:34
8:34
-0:09
40K
24.85 mi14:37:473:36:068:427:37
8:55
+0:21
25.2M
25.20 mi14:41:003:39:198:433:13
9:20
+0:25
FINISH
26.22 mi14:49:443:48:038:438:44
8:35
-0:45

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

8:27 /mi

Average Pace

8:42 /mi

Slowest Pace

9:20 /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

3:44:50

99% of race

Time at Steady Pace

3:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:42 /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 mi11:28:4527:048:4327:04
8:43
#21252
10K
6.21 mi11:55:3053:498:4026:45
8:37
#21099
15K
9.32 mi12:21:431:20:028:3626:13
8:27
#20654
20K
12.43 mi12:48:471:47:068:3827:04
8:43
#20588
HALF
13.11 mi12:54:361:52:558:375:49
8:32
#20579
25K
15.53 mi13:15:352:13:548:3820:59
8:40
#20386
30K
18.64 mi13:43:192:41:388:4127:44
8:56
#20157
20M
20.00 mi13:55:142:53:338:4111:55
8:47
#19985
21M
21.00 mi14:04:173:02:368:429:03
9:03
#19778
35K
21.75 mi14:10:423:09:018:426:25
8:35
#19712
23M
23.00 mi14:21:363:19:558:4210:54
8:43
#19558
24M
24.00 mi14:30:103:28:298:428:34
8:34
#19466
40K
24.85 mi14:37:473:36:068:427:37
8:55
#19413
25.2M
25.20 mi14:41:003:39:198:433:13
9:20
#19361
FINISH
26.22 mi14:49:443:48:038:438:44
8:35
#19329
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 mi21252128561285619767(Top 68%)12224(Top 75%)12224(Top 214%)
10K6.21 mi3.10 mi21099+15312808+4812808+4820929(Top 72%)12747(Top 78%)12747(Top 223%)
15K9.32 mi3.11 mi20654+44512611+19712611+19719767(Top 68%)12224(Top 75%)12224(Top 214%)
20K12.43 mi3.11 mi20588+6612568+4312568+4320511(Top 71%)12522(Top 77%)12522(Top 219%)
HALF13.11 mi0.68 mi20579+912561+712561+720388(Top 70%)12496(Top 76%)12496(Top 218%)
25K15.53 mi2.42 mi20386+19312469+9212469+9219467(Top 67%)12002(Top 73%)12002(Top 210%)
30K18.64 mi3.11 mi20157+22912346+12312346+12319214(Top 66%)11805(Top 72%)11805(Top 206%)
20M20.00 mi1.36 mi19985+17212241+10512241+10517811(Top 61%)11100(Top 68%)11100(Top 194%)
21M21.00 mi1.00 mi19778+20712125+11612125+11616373(Top 56%)10422(Top 64%)10422(Top 182%)
35K21.75 mi0.75 mi19712+6612086+3912086+3917996(Top 62%)11054(Top 68%)11054(Top 193%)
23M23.00 mi1.25 mi19558+15411989+9711989+9716955(Top 58%)10492(Top 64%)10492(Top 183%)
24M24.00 mi1.00 mi19466+9211932+5711932+5717253(Top 59%)10591(Top 65%)10591(Top 185%)
40K24.85 mi0.85 mi19413+5311900+3211900+3217927(Top 62%)10870(Top 67%)10870(Top 190%)
25.2M25.20 mi0.35 mi19361+5211868+3211868+3216457(Top 57%)10204(Top 62%)10204(Top 178%)
FINISH26.22 mi1.02 mi19329+3211837+3111837+3118510(Top 64%)11140(Top 68%)11140(Top 195%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21
+97ft-345ft

Overall

19767

Males

12224

M18-39

12224

5K→10K

3.1 - 6.2 mi

Top 72%
×5
+79ft-138ft

Overall

20929

Males

12747

M18-39

12747

10K→15K

6.2 - 9.3 mi

Top 68%
×3
+67ft-78ft

Overall

19767

Males

12224

M18-39

12224

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20511

Males

12522

M18-39

12522

20K→HALF

12.4 - 13.1 mi

Top 70%
×2
+19ft-37ft

Overall

20388

Males

12496

M18-39

12496

HALF→25K

13.1 - 15.5 mi

Top 67%
×4
+66ft-88ft

Overall

19467

Males

12002

M18-39

12002

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19214

Males

11805

M18-39

11805

30K→20M

18.6 - 20.0 mi

Top 61%
×5
+64ft-50ft

Overall

17811

Males

11100

M18-39

11100

20M→21M

20.0 - 21.0 mi

Top 56%
×8
+106ft-24ft

Overall

16373

Males

10422

M18-39

10422

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

17996

Males

11054

M18-39

11054

35K→23M

21.8 - 23.0 mi

Top 58%
×5
+23ft-63ft

Overall

16955

Males

10492

M18-39

10492

23M→24M

23.0 - 24.0 mi

Top 59%
×6
+12ft-82ft

Overall

17253

Males

10591

M18-39

10591

24M→40K

24.0 - 24.9 mi

Top 62%
×1
+6ft-20ft

Overall

17927

Males

10870

M18-39

10870

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1
+13ft-16ft

Overall

16457

Males

10204

M18-39

10204

25.2M→FINISH

25.2 - 26.2 mi

Top 64%
×2
+22ft-21ft

Overall

18510

Males

11140

M18-39

11140

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2605*
Passed By
682
Net Change
+1923
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21252
5K → 10K353*200+153#21252#21099
10K → 15K500*55+445#21099#20654
15K → 20K191125+66#20654#20588
20K → HALF3829+9#20588#20579
HALF → 25K236*43+193#20579#20386
25K → 30K297*68+229#20386#20157
30K → 20M18715+172#20157#19985
20M → 21M216*9+207#19985#19778
21M → 35K8115+66#19778#19712
35K → 23M16713+154#19712#19558
23M → 24M11826+92#19558#19466
24M → 40K9138+53#19466#19413
40K → 25.2M575+52#19413#19361
25.2M → FINISH7341+32#19361#19329
TOTALS2605*682+1923

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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