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BOSTON MARATHON 2026

Nathan Mccartney

Bib: 27582•M

PA

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
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
29:37
3.11 mi
Rank: #24575
Start → 5K
29:37 | 9:32/mi
10K
57:19
6.21 mi
Rank: #23631 (+944)
5K → 10K
27:42 | 8:55/mi
15K
1:26:09
9.32 mi
Rank: #23693 (-62)
10K → 15K
28:50 | 9:17/mi
20K
1:54:47
12.43 mi
Rank: #23497 (+196)
15K → 20K
28:38 | 9:13/mi
HALF
2:00:55
13.11 mi
Rank: #23459 (+38)
20K → HALF
6:08 | 9:00/mi
25K
2:23:45
15.53 mi
Rank: #23311 (+148)
HALF → 25K
22:50 | 9:25/mi
30K
2:55:23
18.64 mi
Rank: #23358 (-47)
25K → 30K
31:38 | 10:11/mi
20M
3:09:05
20.00 mi
Rank: #23298 (+60)
30K → 20M
13:42 | 10:06/mi
21M
3:20:14
21.00 mi
Rank: #23282 (+16)
20M → 21M
11:09 | 11:09/mi
35K
3:28:41
21.75 mi
Rank: #23398 (-116)
21M → 35K
8:27 | 11:18/mi
23M
3:41:34
23.00 mi
Rank: #23346 (+52)
35K → 23M
12:53 | 10:18/mi
24M
3:51:35
24.00 mi
Rank: #23324 (+22)
23M → 24M
10:01 | 10:01/mi
40K
4:00:32
24.85 mi
Rank: #23308 (+16)
24M → 40K
8:57 | 10:29/mi
25.2M
4:04:26
25.20 mi
Rank: #23287 (+21)
40K → 25.2M
3:54 | 11:19/mi
FINISH
4:13:51
26.22 mi
Rank: #23206 (+81)
25.2M → FINISH
9:25 | 9:15/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:00:55
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:12:56
Pace10:09 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2929:379:3229:37
9:32
-
10K
6.21 mi12:20:1157:199:1427:42
8:55
-0:37
15K
9.32 mi12:49:011:26:099:1528:50
9:17
+0:22
20K
12.43 mi13:17:391:54:479:1528:38
9:13
-0:04
HALF
13.11 mi13:23:472:00:559:146:08
9:00
-0:13
25K
15.53 mi13:46:372:23:459:1622:50
9:25
+0:25
30K
18.64 mi14:18:152:55:239:2531:38
10:11
+0:46
20M
20.00 mi14:31:573:09:059:2813:42
10:06
-0:05
21M
21.00 mi14:43:063:20:149:3311:09
11:09
+1:03
35K
21.75 mi14:51:333:28:419:368:27
11:18
+0:09
23M
23.00 mi15:04:263:41:349:3912:53
10:18
-1:00
24M
24.00 mi15:14:273:51:359:3910:01
10:01
-0:17
40K
24.85 mi15:23:244:00:329:418:57
10:29
+0:28
25.2M
25.20 mi15:27:184:04:269:423:54
11:19
+0:50
FINISH
26.22 mi15:36:434:13:519:429:25
9:15
-2:04

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

8:55 /mi

Average Pace

9:41 /mi

Slowest Pace

11:19 /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

2:33:10

60% of race

Time at Steady Pace

1:08:14

27% of race

Time at Slower Pace

32:27

13% of race

Average Pace: 9:41 /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 mi11:52:2929:379:3229:37
9:32
#24575
10K
6.21 mi12:20:1157:199:1427:42
8:55
#23631
15K
9.32 mi12:49:011:26:099:1528:50
9:17
#23693
20K
12.43 mi13:17:391:54:479:1528:38
9:13
#23497
HALF
13.11 mi13:23:472:00:559:146:08
9:00
#23459
25K
15.53 mi13:46:372:23:459:1622:50
9:25
#23311
30K
18.64 mi14:18:152:55:239:2531:38
10:11
#23358
20M
20.00 mi14:31:573:09:059:2813:42
10:06
#23298
21M
21.00 mi14:43:063:20:149:3311:09
11:09
#23282
35K
21.75 mi14:51:333:28:419:368:27
11:18
#23398
23M
23.00 mi15:04:263:41:349:3912:53
10:18
#23346
24M
24.00 mi15:14:273:51:359:3910:01
10:01
#23324
40K
24.85 mi15:23:244:00:329:418:57
10:29
#23308
25.2M
25.20 mi15:27:184:04:269:423:54
11:19
#23287
FINISH
26.22 mi15:36:434:13:519:429:25
9:15
#23206
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi24575145131451323771(Top 82%)14136(Top 87%)14136(Top 643%)
10K6.21 mi3.10 mi23631+94414051+46214051+46222463(Top 77%)13486(Top 83%)13486(Top 614%)
15K9.32 mi3.11 mi23693-6214098-4714098-4723771(Top 82%)14136(Top 87%)14136(Top 643%)
20K12.43 mi3.11 mi23497+19613997+10113997+10122821(Top 79%)13650(Top 84%)13650(Top 621%)
HALF13.11 mi0.68 mi23459+3813974+2313974+2322739(Top 78%)13617(Top 83%)13617(Top 620%)
25K15.53 mi2.42 mi23311+14813880+9413880+9422760(Top 78%)13593(Top 83%)13593(Top 618%)
30K18.64 mi3.11 mi23358-4713861+1913861+1923579(Top 81%)13876(Top 85%)13876(Top 631%)
20M20.00 mi1.36 mi23298+6013822+3913822+3922805(Top 79%)13450(Top 82%)13450(Top 612%)
21M21.00 mi1.00 mi23282+1613800+2213800+2223433(Top 81%)13687(Top 84%)13687(Top 623%)
35K21.75 mi0.75 mi23398-11613857-5713857-5725737(Top 89%)14742(Top 90%)14742(Top 671%)
23M23.00 mi1.25 mi23346+5213825+3213825+3222886(Top 79%)13340(Top 82%)13340(Top 607%)
24M24.00 mi1.00 mi23324+2213805+2013805+2022842(Top 79%)13292(Top 81%)13292(Top 605%)
40K24.85 mi0.85 mi23308+1613777+2813777+2823121(Top 80%)13350(Top 82%)13350(Top 607%)
25.2M25.20 mi0.35 mi23287+2113761+1613761+1623089(Top 80%)13346(Top 82%)13346(Top 607%)
FINISH26.22 mi1.02 mi23206+8113718+4313718+4321428(Top 74%)12566(Top 77%)12566(Top 572%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21
+97ft-345ft

Overall

23771

Males

14136

M40-44

14136

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22463

Males

13486

M40-44

13486

10K→15K

6.2 - 9.3 mi

Top 82%
×3
+67ft-78ft

Overall

23771

Males

14136

M40-44

14136

15K→20K

9.3 - 12.4 mi

Top 79%
×5
+106ft-86ft

Overall

22821

Males

13650

M40-44

13650

20K→HALF

12.4 - 13.1 mi

Top 78%
×2
+19ft-37ft

Overall

22739

Males

13617

M40-44

13617

HALF→25K

13.1 - 15.5 mi

Top 78%
×4
+66ft-88ft

Overall

22760

Males

13593

M40-44

13593

25K→30K

15.5 - 18.6 mi

Top 81%
×9
+181ft-148ft

Overall

23579

Males

13876

M40-44

13876

30K→20M

18.6 - 20.0 mi

Top 79%
×5
+64ft-50ft

Overall

22805

Males

13450

M40-44

13450

20M→21M

20.0 - 21.0 mi

Top 81%
×8
+106ft-24ft

Overall

23433

Males

13687

M40-44

13687

21M→35K

21.0 - 21.8 mi

Top 89%
×7
+17ft-86ft

Overall

25737

Males

14742

M40-44

14742

35K→23M

21.8 - 23.0 mi

Top 79%
×5
+23ft-63ft

Overall

22886

Males

13340

M40-44

13340

23M→24M

23.0 - 24.0 mi

Top 79%
×6
+12ft-82ft

Overall

22842

Males

13292

M40-44

13292

24M→40K

24.0 - 24.9 mi

Top 80%
×1
+6ft-20ft

Overall

23121

Males

13350

M40-44

13350

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1
+13ft-16ft

Overall

23089

Males

13346

M40-44

13346

25.2M→FINISH

25.2 - 26.2 mi

Top 74%
×2
+22ft-21ft

Overall

21428

Males

12566

M40-44

12566

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2253
Passed By
884
Net Change
+1369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24575
5K → 10K95713+944#24575#23631
10K → 15K132194-62#23631#23693
15K → 20K25963+196#23693#23497
20K → HALF4810+38#23497#23459
HALF → 25K19749+148#23459#23311
25K → 30K126173-47#23311#23358
30K → 20M10242+60#23358#23298
20M → 21M7559+16#23298#23282
21M → 35K21137-116#23282#23398
35K → 23M8937+52#23398#23346
23M → 24M6038+22#23346#23324
24M → 40K5943+16#23324#23308
40K → 25.2M3716+21#23308#23287
25.2M → FINISH9110+81#23287#23206
TOTALS2253884+1369
📊

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