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BOSTON MARATHON 2026

Harrison Grayson

Bib: 25676•M

MD

Masters
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0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M70-74)
#0 / 281
Top 28%
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
27:12
3.11 mi
Rank: #21465
Start → 5K
27:12 | 8:46/mi
10K
54:08
6.21 mi
Rank: #21384 (+81)
5K → 10K
26:56 | 8:41/mi
15K
1:21:14
9.32 mi
Rank: #21344 (+40)
10K → 15K
27:06 | 8:44/mi
20K
1:51:03
12.43 mi
Rank: #22198 (-854)
15K → 20K
29:49 | 9:36/mi
HALF
1:56:58
13.11 mi
Rank: #22144 (+54)
20K → HALF
5:55 | 8:41/mi
25K
2:18:28
15.53 mi
Rank: #21855 (+289)
HALF → 25K
21:30 | 8:52/mi
30K
2:47:21
18.64 mi
Rank: #21668 (+187)
25K → 30K
28:53 | 9:18/mi
20M
3:00:08
20.00 mi
Rank: #21571 (+97)
30K → 20M
12:47 | 9:25/mi
21M
3:10:16
21.00 mi
Rank: #21551 (+20)
20M → 21M
10:08 | 10:08/mi
35K
3:17:16
21.75 mi
Rank: #21541 (+10)
21M → 35K
7:00 | 9:22/mi
23M
3:29:30
23.00 mi
Rank: #21556 (-15)
35K → 23M
12:14 | 9:47/mi
24M
3:39:22
24.00 mi
Rank: #21641 (-85)
23M → 24M
9:52 | 9:52/mi
40K
3:48:11
24.85 mi
Rank: #21733 (-92)
24M → 40K
8:49 | 10:19/mi
25.2M
3:52:11
25.20 mi
Rank: #21787 (-54)
40K → 25.2M
4:00 | 11:36/mi
FINISH
4:03:14
26.22 mi
Rank: #21975 (-188)
25.2M → FINISH
11:03 | 10:51/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:56:58
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:06:16
Pace9:38 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:2827:128:4627:12
8:46
-
10K
6.21 mi12:00:2454:088:4326:56
8:41
-0:05
15K
9.32 mi12:27:301:21:148:4327:06
8:44
+0:03
20K
12.43 mi12:57:191:51:038:5729:49
9:36
+0:52
HALF
13.11 mi13:03:141:56:588:565:55
8:41
-0:55
25K
15.53 mi13:24:442:18:288:5521:30
8:52
+0:11
30K
18.64 mi13:53:372:47:218:5928:53
9:18
+0:26
20M
20.00 mi14:06:243:00:089:0112:47
9:25
+0:07
21M
21.00 mi14:16:323:10:169:0410:08
10:08
+0:43
35K
21.75 mi14:23:323:17:169:057:00
9:22
-0:46
23M
23.00 mi14:35:463:29:309:0712:14
9:47
+0:25
24M
24.00 mi14:45:383:39:229:099:52
9:52
+0:05
40K
24.85 mi14:54:273:48:119:118:49
10:19
+0:27
25.2M
25.20 mi14:58:273:52:119:134:00
11:36
+1:17
FINISH
26.22 mi15:09:304:03:149:1811:03
10:51
-0:45

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

8:41 /mi

Average Pace

9:17 /mi

Slowest Pace

11:36 /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

1:48:39

45% of race

Time at Steady Pace

1:30:43

37% of race

Time at Slower Pace

43:52

18% of race

Average Pace: 9:17 /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 mi11:33:2827:128:4627:12
8:46
#21465
10K
6.21 mi12:00:2454:088:4326:56
8:41
#21384
15K
9.32 mi12:27:301:21:148:4327:06
8:44
#21344
20K
12.43 mi12:57:191:51:038:5729:49
9:36
#22198
HALF
13.11 mi13:03:141:56:588:565:55
8:41
#22144
25K
15.53 mi13:24:442:18:288:5521:30
8:52
#21855
30K
18.64 mi13:53:372:47:218:5928:53
9:18
#21668
20M
20.00 mi14:06:243:00:089:0112:47
9:25
#21571
21M
21.00 mi14:16:323:10:169:0410:08
10:08
#21551
35K
21.75 mi14:23:323:17:169:057:00
9:22
#21541
23M
23.00 mi14:35:463:29:309:0712:14
9:47
#21556
24M
24.00 mi14:45:383:39:229:099:52
9:52
#21641
40K
24.85 mi14:54:273:48:119:118:49
10:19
#21733
25.2M
25.20 mi14:58:273:52:119:134:00
11:36
#21787
FINISH
26.22 mi15:09:304:03:149:1811:03
10:51
#21975
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi21465129471294721325(Top 73%)12941(Top 79%)12941(Top 4605%)
10K6.21 mi3.10 mi21384+8112942+512942+521256(Top 73%)12900(Top 79%)12900(Top 4591%)
15K9.32 mi3.11 mi21344+4012923+1912923+1921325(Top 73%)12941(Top 79%)12941(Top 4605%)
20K12.43 mi3.11 mi22198-85413349-42613349-42624034(Top 83%)14242(Top 87%)14242(Top 5068%)
HALF13.11 mi0.68 mi22144+5413321+2813321+2821206(Top 73%)12902(Top 79%)12902(Top 4591%)
25K15.53 mi2.42 mi21855+28913174+14713174+14720538(Top 71%)12518(Top 77%)12518(Top 4455%)
30K18.64 mi3.11 mi21668+18713069+10513069+10520921(Top 72%)12626(Top 77%)12626(Top 4493%)
20M20.00 mi1.36 mi21571+9712997+7212997+7220727(Top 71%)12447(Top 76%)12447(Top 4430%)
21M21.00 mi1.00 mi21551+2012979+1812979+1820863(Top 72%)12488(Top 76%)12488(Top 4444%)
35K21.75 mi0.75 mi21541+1012969+1012969+1021335(Top 74%)12646(Top 77%)12646(Top 4500%)
23M23.00 mi1.25 mi21556-1512968+112968+121482(Top 74%)12672(Top 78%)12672(Top 4510%)
24M24.00 mi1.00 mi21641-8512997-2912997-2922414(Top 77%)13087(Top 80%)13087(Top 4657%)
40K24.85 mi0.85 mi21733-9213021-2413021-2422740(Top 78%)13181(Top 81%)13181(Top 4691%)
25.2M25.20 mi0.35 mi21787-5413042-2113042-2123673(Top 82%)13612(Top 83%)13612(Top 4844%)
FINISH26.22 mi1.02 mi21975-18813120-7813120-7825803(Top 89%)14648(Top 90%)14648(Top 5213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21325

Males

12941

M70-74

12941

5K→10K

3.1 - 6.2 mi

Top 73%
×5
+79ft-138ft

Overall

21256

Males

12900

M70-74

12900

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21325

Males

12941

M70-74

12941

15K→20K

9.3 - 12.4 mi

Top 83%
×5
+106ft-86ft

Overall

24034

Males

14242

M70-74

14242

20K→HALF

12.4 - 13.1 mi

Top 73%
×2
+19ft-37ft

Overall

21206

Males

12902

M70-74

12902

HALF→25K

13.1 - 15.5 mi

Top 71%
×4
+66ft-88ft

Overall

20538

Males

12518

M70-74

12518

25K→30K

15.5 - 18.6 mi

Top 72%
×9
+181ft-148ft

Overall

20921

Males

12626

M70-74

12626

30K→20M

18.6 - 20.0 mi

Top 71%
×5
+64ft-50ft

Overall

20727

Males

12447

M70-74

12447

20M→21M

20.0 - 21.0 mi

Top 72%
×8
+106ft-24ft

Overall

20863

Males

12488

M70-74

12488

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21335

Males

12646

M70-74

12646

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21482

Males

12672

M70-74

12672

23M→24M

23.0 - 24.0 mi

Top 77%
×6
+12ft-82ft

Overall

22414

Males

13087

M70-74

13087

24M→40K

24.0 - 24.9 mi

Top 78%
×1
+6ft-20ft

Overall

22740

Males

13181

M70-74

13181

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1
+13ft-16ft

Overall

23673

Males

13612

M70-74

13612

25.2M→FINISH

25.2 - 26.2 mi

Top 89%
×2
+22ft-21ft

Overall

25803

Males

14648

M70-74

14648

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1587
Passed By
2097
Net Change
-510
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21465
5K → 10K332251+81#21465#21384
10K → 15K199159+40#21384#21344
15K → 20K29883-854#21344#22198
20K → HALF617+54#22198#22144
HALF → 25K30415+289#22144#21855
25K → 30K25871+187#21855#21668
30K → 20M13336+97#21668#21571
20M → 21M9373+20#21571#21551
21M → 35K3828+10#21551#21541
35K → 23M7085-15#21541#21556
23M → 24M26111-85#21556#21641
24M → 40K25117-92#21641#21733
40K → 25.2M862-54#21733#21787
25.2M → FINISH11199-188#21787#21975
TOTALS15872097-510
📊

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