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BOSTON MARATHON 2026

Nicholas Nebolsine

Bib: 12870•M

VA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 22%
Gender (Male)
#0 / 16340
Top 34%
Masters (Masters Men)
#0 / 10617
Top 20%
Age Group (M50-54)
#0 / 1868
Top 14%
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
22:00
3.11 mi
Rank: #9188
Start → 5K
22:00 | 7:05/mi
10K
43:19
6.21 mi
Rank: #8358 (+830)
5K → 10K
21:19 | 6:52/mi
15K
1:04:34
9.32 mi
Rank: #8030 (+328)
10K → 15K
21:15 | 6:51/mi
20K
1:26:01
12.43 mi
Rank: #7751 (+279)
15K → 20K
21:27 | 6:55/mi
HALF
1:30:43
13.11 mi
Rank: #7774 (-23)
20K → HALF
4:42 | 6:54/mi
25K
1:47:37
15.53 mi
Rank: #7618 (+156)
HALF → 25K
16:54 | 6:59/mi
30K
2:09:11
18.64 mi
Rank: #7192 (+426)
25K → 30K
21:34 | 6:57/mi
20M
2:18:46
20.00 mi
Rank: #7061 (+131)
30K → 20M
9:35 | 7:04/mi
21M
2:26:01
21.00 mi
Rank: #6902 (+159)
20M → 21M
7:15 | 7:15/mi
35K
2:31:06
21.75 mi
Rank: #6833 (+69)
21M → 35K
5:05 | 6:48/mi
23M
2:39:54
23.00 mi
Rank: #6693 (+140)
35K → 23M
8:48 | 7:02/mi
24M
2:46:46
24.00 mi
Rank: #6606 (+87)
23M → 24M
6:52 | 6:52/mi
40K
2:52:45
24.85 mi
Rank: #6516 (+90)
24M → 40K
5:59 | 7:00/mi
25.2M
2:55:17
25.20 mi
Rank: #6458 (+58)
40K → 25.2M
2:32 | 7:21/mi
FINISH
3:01:53
26.22 mi
Rank: #6326 (+132)
25.2M → FINISH
6:36 | 6:29/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:30:43
Pace6:56 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:10
Pace6:58 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2822:007:0522:00
7:05
-
10K
6.21 mi11:11:4743:196:5921:19
6:52
-0:13
15K
9.32 mi11:33:021:04:346:5621:15
6:51
-0:01
20K
12.43 mi11:54:291:26:016:5621:27
6:55
+0:04
HALF
13.11 mi11:59:111:30:436:564:42
6:54
-0:01
25K
15.53 mi12:16:051:47:376:5616:54
6:59
+0:05
30K
18.64 mi12:37:392:09:116:5621:34
6:57
-0:02
20M
20.00 mi12:47:142:18:466:579:35
7:04
+0:07
21M
21.00 mi12:54:292:26:016:587:15
7:15
+0:11
35K
21.75 mi12:59:342:31:066:575:05
6:48
-0:27
23M
23.00 mi13:08:222:39:546:588:48
7:02
+0:14
24M
24.00 mi13:15:142:46:466:576:52
6:52
-0:10
40K
24.85 mi13:21:132:52:456:585:59
7:00
+0:08
25.2M
25.20 mi13:23:452:55:176:582:32
7:21
+0:21
FINISH
26.22 mi13:30:213:01:536:576:36
6:29
-0:52

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

6:29 /mi

Average Pace

6:57 /mi

Slowest Pace

7:21 /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

2:52:06

95% of race

Time at Steady Pace

9:47

5% 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 mi10:50:2822:007:0522:00
7:05
#9188
10K
6.21 mi11:11:4743:196:5921:19
6:52
#8358
15K
9.32 mi11:33:021:04:346:5621:15
6:51
#8030
20K
12.43 mi11:54:291:26:016:5621:27
6:55
#7751
HALF
13.11 mi11:59:111:30:436:564:42
6:54
#7774
25K
15.53 mi12:16:051:47:376:5616:54
6:59
#7618
30K
18.64 mi12:37:392:09:116:5621:34
6:57
#7192
20M
20.00 mi12:47:142:18:466:579:35
7:04
#7061
21M
21.00 mi12:54:292:26:016:587:15
7:15
#6902
35K
21.75 mi12:59:342:31:066:575:05
6:48
#6833
23M
23.00 mi13:08:222:39:546:588:48
7:02
#6693
24M
24.00 mi13:15:142:46:466:576:52
6:52
#6606
40K
24.85 mi13:21:132:52:456:585:59
7:00
#6516
25.2M
25.20 mi13:23:452:55:176:582:32
7:21
#6458
FINISH
26.22 mi13:30:213:01:536:576:36
6:29
#6326
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9188766376637201(Top 25%)6322(Top 39%)6322(Top 338%)
10K6.21 mi3.10 mi8358+8307112+5517112+5517572(Top 26%)6605(Top 40%)6605(Top 354%)
15K9.32 mi3.11 mi8030+3286903+2096903+2097201(Top 25%)6322(Top 39%)6322(Top 338%)
20K12.43 mi3.11 mi7751+2796715+1886715+1887118(Top 25%)6234(Top 38%)6234(Top 334%)
HALF13.11 mi0.68 mi7774-236727-126727-127820(Top 27%)6708(Top 41%)6708(Top 359%)
25K15.53 mi2.42 mi7618+1566607+1206607+1207176(Top 25%)6230(Top 38%)6230(Top 334%)
30K18.64 mi3.11 mi7192+4266304+3036304+3035480(Top 19%)4905(Top 30%)4905(Top 263%)
20M20.00 mi1.36 mi7061+1316189+1156189+1155940(Top 20%)5205(Top 32%)5205(Top 279%)
21M21.00 mi1.00 mi6902+1596063+1266063+1264967(Top 17%)4376(Top 27%)4376(Top 234%)
35K21.75 mi0.75 mi6833+696004+596004+595655(Top 19%)4925(Top 30%)4925(Top 264%)
23M23.00 mi1.25 mi6693+1405885+1195885+1195660(Top 20%)4875(Top 30%)4875(Top 261%)
24M24.00 mi1.00 mi6606+875814+715814+715595(Top 19%)4762(Top 29%)4762(Top 255%)
40K24.85 mi0.85 mi6516+905733+815733+815482(Top 19%)4630(Top 28%)4630(Top 248%)
25.2M25.20 mi0.35 mi6458+585690+435690+434373(Top 15%)3766(Top 23%)3766(Top 202%)
FINISH26.22 mi1.02 mi6326+1325588+1025588+1024006(Top 14%)3479(Top 21%)3479(Top 186%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21
+97ft-345ft

Overall

7201

Males

6322

M50-54

6322

5K→10K

3.1 - 6.2 mi

Top 26%
×5
+79ft-138ft

Overall

7572

Males

6605

M50-54

6605

10K→15K

6.2 - 9.3 mi

Top 25%
×3
+67ft-78ft

Overall

7201

Males

6322

M50-54

6322

15K→20K

9.3 - 12.4 mi

Top 25%
×5
+106ft-86ft

Overall

7118

Males

6234

M50-54

6234

20K→HALF

12.4 - 13.1 mi

Top 27%
×2
+19ft-37ft

Overall

7820

Males

6708

M50-54

6708

HALF→25K

13.1 - 15.5 mi

Top 25%
×4
+66ft-88ft

Overall

7176

Males

6230

M50-54

6230

25K→30K

15.5 - 18.6 mi

Top 19%
×9
+181ft-148ft

Overall

5480

Males

4905

M50-54

4905

30K→20M

18.6 - 20.0 mi

Top 20%
×5
+64ft-50ft

Overall

5940

Males

5205

M50-54

5205

20M→21M

20.0 - 21.0 mi

Top 17%
×8
+106ft-24ft

Overall

4967

Males

4376

M50-54

4376

21M→35K

21.0 - 21.8 mi

Top 19%
×7
+17ft-86ft

Overall

5655

Males

4925

M50-54

4925

35K→23M

21.8 - 23.0 mi

Top 20%
×5
+23ft-63ft

Overall

5660

Males

4875

M50-54

4875

23M→24M

23.0 - 24.0 mi

Top 19%
×6
+12ft-82ft

Overall

5595

Males

4762

M50-54

4762

24M→40K

24.0 - 24.9 mi

Top 19%
×1
+6ft-20ft

Overall

5482

Males

4630

M50-54

4630

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1
+13ft-16ft

Overall

4373

Males

3766

M50-54

3766

25.2M→FINISH

25.2 - 26.2 mi

Top 14%
×2
+22ft-21ft

Overall

4006

Males

3479

M50-54

3479

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3088*
Passed By
226
Net Change
+2862
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9188
5K → 10K846*16+830#9188#8358
10K → 15K349*21+328#8358#8030
15K → 20K305*26+279#8030#7751
20K → HALF2245-23#7751#7774
HALF → 25K19135+156#7774#7618
25K → 30K437*11+426#7618#7192
30K → 20M14716+131#7192#7061
20M → 21M1645+159#7061#6902
21M → 35K789+69#6902#6833
35K → 23M15515+140#6833#6693
23M → 24M10013+87#6693#6606
24M → 40K977+90#6606#6516
40K → 25.2M613+58#6516#6458
25.2M → FINISH1364+132#6458#6326
TOTALS3088*226+2862

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing