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BOSTON MARATHON 2026

Marcel Nienhuis

Bib: 11306•M

MN

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 19%
Gender (Male)
#0 / 16340
Top 31%
Masters (Masters Men)
#0 / 10617
Top 16%
Age Group (M45-49)
#0 / 2413
Top 22%
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
21:12
3.11 mi
Rank: #7075
Start → 5K
21:12 | 6:50/mi
10K
42:09
6.21 mi
Rank: #6712 (+363)
5K → 10K
20:57 | 6:45/mi
15K
1:03:08
9.32 mi
Rank: #6579 (+133)
10K → 15K
20:59 | 6:46/mi
20K
1:24:07
12.43 mi
Rank: #6333 (+246)
15K → 20K
20:59 | 6:46/mi
HALF
1:28:40
13.11 mi
Rank: #6293 (+40)
20K → HALF
4:33 | 6:41/mi
25K
1:45:11
15.53 mi
Rank: #6183 (+110)
HALF → 25K
16:31 | 6:49/mi
30K
2:07:00
18.64 mi
Rank: #6147 (+36)
25K → 30K
21:49 | 7:02/mi
20M
2:16:26
20.00 mi
Rank: #6062 (+85)
30K → 20M
9:26 | 6:57/mi
21M
2:23:50
21.00 mi
Rank: #6025 (+37)
20M → 21M
7:24 | 7:24/mi
35K
2:28:54
21.75 mi
Rank: #5995 (+30)
21M → 35K
5:04 | 6:47/mi
23M
2:37:36
23.00 mi
Rank: #5922 (+73)
35K → 23M
8:42 | 6:58/mi
24M
2:44:20
24.00 mi
Rank: #5816 (+106)
23M → 24M
6:44 | 6:44/mi
40K
2:50:07
24.85 mi
Rank: #5696 (+120)
24M → 40K
5:47 | 6:46/mi
25.2M
2:52:35
25.20 mi
Rank: #5641 (+55)
40K → 25.2M
2:28 | 7:10/mi
FINISH
2:59:15
26.22 mi
Rank: #5581 (+60)
25.2M → FINISH
6:40 | 6:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:28:40
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:30:35
Pace6:55 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:39:3021:126:5021:12
6:50
-
10K
6.21 mi11:00:2742:096:4820:57
6:45
-0:05
15K
9.32 mi11:21:261:03:086:4720:59
6:46
+0:01
20K
12.43 mi11:42:251:24:076:4720:59
6:46
0:00
HALF
13.11 mi11:46:581:28:406:464:33
6:41
-0:05
25K
15.53 mi12:03:291:45:116:4716:31
6:49
+0:08
30K
18.64 mi12:25:182:07:006:4921:49
7:02
+0:13
20M
20.00 mi12:34:442:16:266:509:26
6:57
-0:05
21M
21.00 mi12:42:082:23:506:517:24
7:24
+0:27
35K
21.75 mi12:47:122:28:546:515:04
6:47
-0:37
23M
23.00 mi12:55:542:37:366:528:42
6:58
+0:11
24M
24.00 mi13:02:382:44:206:516:44
6:44
-0:14
40K
24.85 mi13:08:252:50:076:515:47
6:46
+0:02
25.2M
25.20 mi13:10:532:52:356:512:28
7:10
+0:24
FINISH
26.22 mi13:17:332:59:156:516:40
6:33
-0:37

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

6:33 /mi

Average Pace

6:50 /mi

Slowest Pace

7:24 /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

2:51:51

96% of race

Time at Steady Pace

7:24

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:39:3021:126:5021:12
6:50
#7075
10K
6.21 mi11:00:2742:096:4820:57
6:45
#6712
15K
9.32 mi11:21:261:03:086:4720:59
6:46
#6579
20K
12.43 mi11:42:251:24:076:4720:59
6:46
#6333
HALF
13.11 mi11:46:581:28:406:464:33
6:41
#6293
25K
15.53 mi12:03:291:45:116:4716:31
6:49
#6183
30K
18.64 mi12:25:182:07:006:4921:49
7:02
#6147
20M
20.00 mi12:34:442:16:266:509:26
6:57
#6062
21M
21.00 mi12:42:082:23:506:517:24
7:24
#6025
35K
21.75 mi12:47:122:28:546:515:04
6:47
#5995
23M
23.00 mi12:55:542:37:366:528:42
6:58
#5922
24M
24.00 mi13:02:382:44:206:516:44
6:44
#5816
40K
24.85 mi13:08:252:50:076:515:47
6:46
#5696
25.2M
25.20 mi13:10:532:52:356:512:28
7:10
#5641
FINISH
26.22 mi13:17:332:59:156:516:40
6:33
#5581
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 mi7075626962696346(Top 22%)5691(Top 35%)5691(Top 236%)
10K6.21 mi3.10 mi6712+3636003+2666003+2666386(Top 22%)5750(Top 35%)5750(Top 238%)
15K9.32 mi3.11 mi6579+1335891+1125891+1126346(Top 22%)5691(Top 35%)5691(Top 236%)
20K12.43 mi3.11 mi6333+2465714+1775714+1775712(Top 20%)5196(Top 32%)5196(Top 215%)
HALF13.11 mi0.68 mi6293+405681+335681+335907(Top 20%)5335(Top 33%)5335(Top 221%)
25K15.53 mi2.42 mi6183+1105582+995582+995893(Top 20%)5284(Top 32%)5284(Top 219%)
30K18.64 mi3.11 mi6147+365523+595523+596064(Top 21%)5348(Top 33%)5348(Top 222%)
20M20.00 mi1.36 mi6062+855446+775446+775164(Top 18%)4615(Top 28%)4615(Top 191%)
21M21.00 mi1.00 mi6025+375408+385408+385841(Top 20%)5008(Top 31%)5008(Top 208%)
35K21.75 mi0.75 mi5995+305377+315377+315455(Top 19%)4780(Top 29%)4780(Top 198%)
23M23.00 mi1.25 mi5922+735311+665311+665110(Top 18%)4478(Top 27%)4478(Top 186%)
24M24.00 mi1.00 mi5816+1065218+935218+934659(Top 16%)4078(Top 25%)4078(Top 169%)
40K24.85 mi0.85 mi5696+1205120+985120+984023(Top 14%)3548(Top 22%)3548(Top 147%)
25.2M25.20 mi0.35 mi5641+555076+445076+443393(Top 12%)3018(Top 18%)3018(Top 125%)
FINISH26.22 mi1.02 mi5581+605020+565020+564404(Top 15%)3771(Top 23%)3771(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21
+97ft-345ft

Overall

6346

Males

5691

M45-49

5691

5K→10K

3.1 - 6.2 mi

Top 22%
×5
+79ft-138ft

Overall

6386

Males

5750

M45-49

5750

10K→15K

6.2 - 9.3 mi

Top 22%
×3
+67ft-78ft

Overall

6346

Males

5691

M45-49

5691

15K→20K

9.3 - 12.4 mi

Top 20%
×5
+106ft-86ft

Overall

5712

Males

5196

M45-49

5196

20K→HALF

12.4 - 13.1 mi

Top 20%
×2
+19ft-37ft

Overall

5907

Males

5335

M45-49

5335

HALF→25K

13.1 - 15.5 mi

Top 20%
×4
+66ft-88ft

Overall

5893

Males

5284

M45-49

5284

25K→30K

15.5 - 18.6 mi

Top 21%
×9
+181ft-148ft

Overall

6064

Males

5348

M45-49

5348

30K→20M

18.6 - 20.0 mi

Top 18%
×5
+64ft-50ft

Overall

5164

Males

4615

M45-49

4615

20M→21M

20.0 - 21.0 mi

Top 20%
×8
+106ft-24ft

Overall

5841

Males

5008

M45-49

5008

21M→35K

21.0 - 21.8 mi

Top 19%
×7
+17ft-86ft

Overall

5455

Males

4780

M45-49

4780

35K→23M

21.8 - 23.0 mi

Top 18%
×5
+23ft-63ft

Overall

5110

Males

4478

M45-49

4478

23M→24M

23.0 - 24.0 mi

Top 16%
×6
+12ft-82ft

Overall

4659

Males

4078

M45-49

4078

24M→40K

24.0 - 24.9 mi

Top 14%
×1
+6ft-20ft

Overall

4023

Males

3548

M45-49

3548

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1
+13ft-16ft

Overall

3393

Males

3018

M45-49

3018

25.2M→FINISH

25.2 - 26.2 mi

Top 15%
×2
+22ft-21ft

Overall

4404

Males

3771

M45-49

3771

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2032
Passed By
538
Net Change
+1494
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7075
5K → 10K43875+363#7075#6712
10K → 15K21986+133#6712#6579
15K → 20K26822+246#6579#6333
20K → HALF5515+40#6333#6293
HALF → 25K14939+110#6293#6183
25K → 30K158122+36#6183#6147
30K → 20M11227+85#6147#6062
20M → 21M9154+37#6062#6025
21M → 35K5222+30#6025#5995
35K → 23M10532+73#5995#5922
23M → 24M11913+106#5922#5816
24M → 40K1277+120#5816#5696
40K → 25.2M572+55#5696#5641
25.2M → FINISH8222+60#5641#5581
TOTALS2032538+1494
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing