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BOSTON MARATHON 2026

James Mastrianni

Bib: 21588•M

NJ

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M60-64)
#0 / 1514
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
25:37
3.11 mi
Rank: #18513
Start → 5K
25:37 | 8:15/mi
10K
52:17
6.21 mi
Rank: #19694 (-1181)
5K → 10K
26:40 | 8:35/mi
15K
1:19:20
9.32 mi
Rank: #20194 (-500)
10K → 15K
27:03 | 8:43/mi
20K
1:47:48
12.43 mi
Rank: #20909 (-715)
15K → 20K
28:28 | 9:10/mi
HALF
1:53:44
13.11 mi
Rank: #20938 (-29)
20K → HALF
5:56 | 8:43/mi
25K
2:16:32
15.53 mi
Rank: #21267 (-329)
HALF → 25K
22:48 | 9:25/mi
30K
2:50:41
18.64 mi
Rank: #22452 (-1185)
25K → 30K
34:09 | 11:00/mi
20M
3:04:42
20.00 mi
Rank: #22569 (-117)
30K → 20M
14:01 | 10:20/mi
21M
3:17:28
21.00 mi
Rank: #22850 (-281)
20M → 21M
12:46 | 12:46/mi
35K
3:26:55
21.75 mi
Rank: #23156 (-306)
21M → 35K
9:27 | 12:38/mi
23M
3:40:40
23.00 mi
Rank: #23245 (-89)
35K → 23M
13:45 | 11:00/mi
24M
3:52:44
24.00 mi
Rank: #23471 (-226)
23M → 24M
12:04 | 12:04/mi
40K
4:01:54
24.85 mi
Rank: #23461 (+10)
24M → 40K
9:10 | 10:44/mi
25.2M
4:06:09
25.20 mi
Rank: #23489 (-28)
40K → 25.2M
4:15 | 12:20/mi
FINISH
4:21:35
26.22 mi
Rank: #24082 (-593)
25.2M → FINISH
15:26 | 15:09/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:53:44
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:27:51
Pace11:17 /mi
📊Positive Split: 30.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4925:378:1525:37
8:15
-
10K
6.21 mi11:53:2952:178:2526:40
8:35
+0:20
15K
9.32 mi12:20:321:19:208:3127:03
8:43
+0:08
20K
12.43 mi12:49:001:47:488:4128:28
9:10
+0:27
HALF
13.11 mi12:54:561:53:448:415:56
8:43
-0:27
25K
15.53 mi13:17:442:16:328:4822:48
9:25
+0:42
30K
18.64 mi13:51:532:50:419:1034:09
11:00
+1:35
20M
20.00 mi14:05:543:04:429:1514:01
10:20
-0:40
21M
21.00 mi14:18:403:17:289:2512:46
12:46
+2:26
35K
21.75 mi14:28:073:26:559:319:27
12:38
-0:08
23M
23.00 mi14:41:523:40:409:3613:45
11:00
-1:38
24M
24.00 mi14:53:563:52:449:4212:04
12:04
+1:04
40K
24.85 mi15:03:064:01:549:449:10
10:44
-1:20
25.2M
25.20 mi15:07:214:06:099:474:15
12:20
+1:36
FINISH
26.22 mi15:22:474:21:3510:0015:26
15:09
+2:49

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

8:15 /mi

Average Pace

9:59 /mi

Slowest Pace

15:09 /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

2:16:32

52% of race

Time at Steady Pace

1:11:05

27% of race

Time at Slower Pace

53:58

21% of race

Average Pace: 9:59 /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 mi11:26:4925:378:1525:37
8:15
#18513
10K
6.21 mi11:53:2952:178:2526:40
8:35
#19694
15K
9.32 mi12:20:321:19:208:3127:03
8:43
#20194
20K
12.43 mi12:49:001:47:488:4128:28
9:10
#20909
HALF
13.11 mi12:54:561:53:448:415:56
8:43
#20938
25K
15.53 mi13:17:442:16:328:4822:48
9:25
#21267
30K
18.64 mi13:51:532:50:419:1034:09
11:00
#22452
20M
20.00 mi14:05:543:04:429:1514:01
10:20
#22569
21M
21.00 mi14:18:403:17:289:2512:46
12:46
#22850
35K
21.75 mi14:28:073:26:559:319:27
12:38
#23156
23M
23.00 mi14:41:523:40:409:3613:45
11:00
#23245
24M
24.00 mi14:53:563:52:449:4212:04
12:04
#23471
40K
24.85 mi15:03:064:01:549:449:10
10:44
#23461
25.2M
25.20 mi15:07:214:06:099:474:15
12:20
#23489
FINISH
26.22 mi15:22:474:21:3510:0015:26
15:09
#24082
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18513116411164121232(Top 73%)12894(Top 79%)12894(Top 852%)
10K6.21 mi3.10 mi19694-118112161-52012161-52020803(Top 72%)12684(Top 78%)12684(Top 838%)
15K9.32 mi3.11 mi20194-50012395-23412395-23421232(Top 73%)12894(Top 79%)12894(Top 852%)
20K12.43 mi3.11 mi20909-71512719-32412719-32422608(Top 78%)13554(Top 83%)13554(Top 895%)
HALF13.11 mi0.68 mi20938-2912730-1112730-1121346(Top 74%)12979(Top 79%)12979(Top 857%)
25K15.53 mi2.42 mi21267-32912876-14612876-14622724(Top 78%)13584(Top 83%)13584(Top 897%)
30K18.64 mi3.11 mi22452-118513436-56013436-56025328(Top 87%)14690(Top 90%)14690(Top 970%)
20M20.00 mi1.36 mi22569-11713476-4013476-4023387(Top 81%)13717(Top 84%)13717(Top 906%)
21M21.00 mi1.00 mi22850-28113598-12213598-12226090(Top 90%)14928(Top 91%)14928(Top 986%)
35K21.75 mi0.75 mi23156-30613729-13113729-13127395(Top 94%)15529(Top 95%)15529(Top 1026%)
23M23.00 mi1.25 mi23245-8913771-4213771-4224466(Top 84%)14087(Top 86%)14087(Top 930%)
24M24.00 mi1.00 mi23471-22613878-10713878-10726693(Top 92%)15131(Top 93%)15131(Top 999%)
40K24.85 mi0.85 mi23461+1013863+1513863+1523699(Top 82%)13638(Top 83%)13638(Top 901%)
25.2M25.20 mi0.35 mi23489-2813873-1013873-1025016(Top 86%)14291(Top 87%)14291(Top 944%)
FINISH26.22 mi1.02 mi24082-59314126-25314126-25328865(Top 99%)16234(Top 99%)16234(Top 1072%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21232

Males

12894

M60-64

12894

5K→10K

3.1 - 6.2 mi

Top 72%
×5
+79ft-138ft

Overall

20803

Males

12684

M60-64

12684

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21232

Males

12894

M60-64

12894

15K→20K

9.3 - 12.4 mi

Top 78%
×5
+106ft-86ft

Overall

22608

Males

13554

M60-64

13554

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21346

Males

12979

M60-64

12979

HALF→25K

13.1 - 15.5 mi

Top 78%
×4
+66ft-88ft

Overall

22724

Males

13584

M60-64

13584

25K→30K

15.5 - 18.6 mi

Top 87%
×9
+181ft-148ft

Overall

25328

Males

14690

M60-64

14690

30K→20M

18.6 - 20.0 mi

Top 81%
×5
+64ft-50ft

Overall

23387

Males

13717

M60-64

13717

20M→21M

20.0 - 21.0 mi

Top 90%
×8
+106ft-24ft

Overall

26090

Males

14928

M60-64

14928

21M→35K

21.0 - 21.8 mi

Top 94%
×7
+17ft-86ft

Overall

27395

Males

15529

M60-64

15529

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24466

Males

14087

M60-64

14087

23M→24M

23.0 - 24.0 mi

Top 92%
×6
+12ft-82ft

Overall

26693

Males

15131

M60-64

15131

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23699

Males

13638

M60-64

13638

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1
+13ft-16ft

Overall

25016

Males

14291

M60-64

14291

25.2M→FINISH

25.2 - 26.2 mi

Top 99%
×2
+22ft-21ft

Overall

28865

Males

16234

M60-64

16234

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
408
Passed By
5977
Net Change
-5569
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18513
5K → 10K381219-1181#18513#19694
10K → 15K48548-500#19694#20194
15K → 20K46761-715#20194#20909
20K → HALF1847-29#20909#20938
HALF → 25K50379-329#20938#21267
25K → 30K221207-1185#21267#22452
30K → 20M52169-117#22452#22569
20M → 21M13294-281#22569#22850
21M → 35K8314-306#22850#23156
35K → 23M29118-89#23156#23245
23M → 24M20246-226#23245#23471
24M → 40K5040+10#23471#23461
40K → 25.2M836-28#23461#23489
25.2M → FINISH6599-593#23489#24082
TOTALS4085977-5569
📊

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