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BOSTON MARATHON 2026

Andrew Grosso

Bib: 12550•M

NY

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 44%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 47%
Age Group (M50-54)
#0 / 1868
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
22:58
3.11 mi
Rank: #11866
Start → 5K
22:58 | 7:24/mi
10K
45:49
6.21 mi
Rank: #11736 (+130)
5K → 10K
22:51 | 7:22/mi
15K
1:08:41
9.32 mi
Rank: #11686 (+50)
10K → 15K
22:52 | 7:22/mi
20K
1:31:41
12.43 mi
Rank: #11533 (+153)
15K → 20K
23:00 | 7:25/mi
HALF
1:36:37
13.11 mi
Rank: #11485 (+48)
20K → HALF
4:56 | 7:15/mi
25K
1:54:34
15.53 mi
Rank: #11327 (+158)
HALF → 25K
17:57 | 7:25/mi
30K
2:18:18
18.64 mi
Rank: #11192 (+135)
25K → 30K
23:44 | 7:39/mi
20M
2:28:57
20.00 mi
Rank: #11219 (-27)
30K → 20M
10:39 | 7:51/mi
21M
2:37:52
21.00 mi
Rank: #11452 (-233)
20M → 21M
8:55 | 8:55/mi
35K
2:44:02
21.75 mi
Rank: #11627 (-175)
21M → 35K
6:10 | 8:15/mi
23M
2:54:58
23.00 mi
Rank: #11986 (-359)
35K → 23M
10:56 | 8:45/mi
24M
3:04:05
24.00 mi
Rank: #12442 (-456)
23M → 24M
9:07 | 9:07/mi
40K
3:11:37
24.85 mi
Rank: #12642 (-200)
24M → 40K
7:32 | 8:49/mi
25.2M
3:14:50
25.20 mi
Rank: #12685 (-43)
40K → 25.2M
3:13 | 9:20/mi
FINISH
3:23:14
26.22 mi
Rank: #12833 (-148)
25.2M → FINISH
8:24 | 8:15/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:36:37
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:46:37
Pace8:08 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0122:587:2422:58
7:24
-
10K
6.21 mi11:15:5245:497:2322:51
7:22
-0:02
15K
9.32 mi11:38:441:08:417:2322:52
7:22
0:00
20K
12.43 mi12:01:441:31:417:2323:00
7:25
+0:03
HALF
13.11 mi12:06:401:36:377:234:56
7:15
-0:10
25K
15.53 mi12:24:371:54:347:2317:57
7:25
+0:10
30K
18.64 mi12:48:212:18:187:2623:44
7:39
+0:14
20M
20.00 mi12:59:002:28:577:2710:39
7:51
+0:12
21M
21.00 mi13:07:552:37:527:328:55
8:55
+1:04
35K
21.75 mi13:14:052:44:027:336:10
8:15
-0:40
23M
23.00 mi13:25:012:54:587:3710:56
8:45
+0:30
24M
24.00 mi13:34:083:04:057:419:07
9:07
+0:22
40K
24.85 mi13:41:403:11:377:437:32
8:49
-0:18
25.2M
25.20 mi13:44:533:14:507:443:13
9:20
+0:31
FINISH
26.22 mi13:53:173:23:147:468:24
8:15
-1:05

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

7:15 /mi

Average Pace

7:45 /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

1:54:34

56% of race

Time at Steady Pace

34:23

17% of race

Time at Slower Pace

54:17

27% of race

Average Pace: 7:45 /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 mi10:53:0122:587:2422:58
7:24
#11866
10K
6.21 mi11:15:5245:497:2322:51
7:22
#11736
15K
9.32 mi11:38:441:08:417:2322:52
7:22
#11686
20K
12.43 mi12:01:441:31:417:2323:00
7:25
#11533
HALF
13.11 mi12:06:401:36:377:234:56
7:15
#11485
25K
15.53 mi12:24:371:54:347:2317:57
7:25
#11327
30K
18.64 mi12:48:212:18:187:2623:44
7:39
#11192
20M
20.00 mi12:59:002:28:577:2710:39
7:51
#11219
21M
21.00 mi13:07:552:37:527:328:55
8:55
#11452
35K
21.75 mi13:14:052:44:027:336:10
8:15
#11627
23M
23.00 mi13:25:012:54:587:3710:56
8:45
#11986
24M
24.00 mi13:34:083:04:057:419:07
9:07
#12442
40K
24.85 mi13:41:403:11:377:437:32
8:49
#12642
25.2M
25.20 mi13:44:533:14:507:443:13
9:20
#12685
FINISH
26.22 mi13:53:173:23:147:468:24
8:15
#12833
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 mi118668981898111593(Top 40%)8752(Top 54%)8752(Top 469%)
10K6.21 mi3.10 mi11736+1308906+758906+7511646(Top 40%)8823(Top 54%)8823(Top 472%)
15K9.32 mi3.11 mi11686+508839+678839+6711593(Top 40%)8752(Top 54%)8752(Top 469%)
20K12.43 mi3.11 mi11533+1538754+858754+8511151(Top 38%)8451(Top 52%)8451(Top 452%)
HALF13.11 mi0.68 mi11485+488728+268728+2610635(Top 37%)8324(Top 51%)8324(Top 446%)
25K15.53 mi2.42 mi11327+1588624+1048624+10410584(Top 36%)8128(Top 50%)8128(Top 435%)
30K18.64 mi3.11 mi11192+1358515+1098515+10910750(Top 37%)8087(Top 49%)8087(Top 433%)
20M20.00 mi1.36 mi11219-278502+138502+1311639(Top 40%)8384(Top 51%)8384(Top 449%)
21M21.00 mi1.00 mi11452-2338608-1068608-10615628(Top 54%)10079(Top 62%)10079(Top 540%)
35K21.75 mi0.75 mi11627-1758661-538661-5316042(Top 55%)10197(Top 62%)10197(Top 546%)
23M23.00 mi1.25 mi11986-3598787-1268787-12617084(Top 59%)10540(Top 65%)10540(Top 564%)
24M24.00 mi1.00 mi12442-4568953-1668953-16619918(Top 69%)11824(Top 72%)11824(Top 633%)
40K24.85 mi0.85 mi12642-2009024-719024-7117412(Top 60%)10604(Top 65%)10604(Top 568%)
25.2M25.20 mi0.35 mi12685-439024902416393(Top 56%)10140(Top 62%)10140(Top 543%)
FINISH26.22 mi1.02 mi12833-1489063-399063-3916640(Top 57%)10267(Top 63%)10267(Top 550%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21
+97ft-345ft

Overall

11593

Males

8752

M50-54

8752

5K→10K

3.1 - 6.2 mi

Top 40%
×5
+79ft-138ft

Overall

11646

Males

8823

M50-54

8823

10K→15K

6.2 - 9.3 mi

Top 40%
×3
+67ft-78ft

Overall

11593

Males

8752

M50-54

8752

15K→20K

9.3 - 12.4 mi

Top 38%
×5
+106ft-86ft

Overall

11151

Males

8451

M50-54

8451

20K→HALF

12.4 - 13.1 mi

Top 37%
×2
+19ft-37ft

Overall

10635

Males

8324

M50-54

8324

HALF→25K

13.1 - 15.5 mi

Top 36%
×4
+66ft-88ft

Overall

10584

Males

8128

M50-54

8128

25K→30K

15.5 - 18.6 mi

Top 37%
×9
+181ft-148ft

Overall

10750

Males

8087

M50-54

8087

30K→20M

18.6 - 20.0 mi

Top 40%
×5
+64ft-50ft

Overall

11639

Males

8384

M50-54

8384

20M→21M

20.0 - 21.0 mi

Top 54%
×8
+106ft-24ft

Overall

15628

Males

10079

M50-54

10079

21M→35K

21.0 - 21.8 mi

Top 55%
×7
+17ft-86ft

Overall

16042

Males

10197

M50-54

10197

35K→23M

21.8 - 23.0 mi

Top 59%
×5
+23ft-63ft

Overall

17084

Males

10540

M50-54

10540

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19918

Males

11824

M50-54

11824

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17412

Males

10604

M50-54

10604

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16393

Males

10140

M50-54

10140

25.2M→FINISH

25.2 - 26.2 mi

Top 57%
×2
+22ft-21ft

Overall

16640

Males

10267

M50-54

10267

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1564
Passed By
2531
Net Change
-967
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11866
5K → 10K334204+130#11866#11736
10K → 15K208158+50#11736#11686
15K → 20K22370+153#11686#11533
20K → HALF579+48#11533#11485
HALF → 25K20042+158#11485#11327
25K → 30K261126+135#11327#11192
30K → 20M76103-27#11192#11219
20M → 21M37270-233#11219#11452
21M → 35K26201-175#11452#11627
35K → 23M35394-359#11627#11986
23M → 24M18474-456#11986#12442
24M → 40K30230-200#12442#12642
40K → 25.2M1962-43#12642#12685
25.2M → FINISH40188-148#12685#12833
TOTALS15642531-967

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📊

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