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BOSTON MARATHON 2026

Keith Mascall

Bib: 6824•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 26%
Gender (Male)
#0 / 16340
Top 39%
Masters (Masters Men)
#0 / 10617
Top 26%
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
21:24
3.11 mi
Rank: #7636
Start → 5K
21:24 | 6:54/mi
10K
43:03
6.21 mi
Rank: #8046 (-410)
5K → 10K
21:39 | 6:59/mi
15K
1:04:35
9.32 mi
Rank: #8045 (+1)
10K → 15K
21:32 | 6:56/mi
20K
1:26:35
12.43 mi
Rank: #8126 (-81)
15K → 20K
22:00 | 7:05/mi
HALF
1:31:16
13.11 mi
Rank: #8113 (+13)
20K → HALF
4:41 | 6:53/mi
25K
1:48:09
15.53 mi
Rank: #7887 (+226)
HALF → 25K
16:53 | 6:58/mi
30K
2:10:29
18.64 mi
Rank: #7704 (+183)
25K → 30K
22:20 | 7:12/mi
20M
2:20:16
20.00 mi
Rank: #7603 (+101)
30K → 20M
9:47 | 7:13/mi
21M
2:27:50
21.00 mi
Rank: #7529 (+74)
20M → 21M
7:34 | 7:34/mi
35K
2:33:03
21.75 mi
Rank: #7470 (+59)
21M → 35K
5:13 | 6:59/mi
23M
2:42:22
23.00 mi
Rank: #7450 (+20)
35K → 23M
9:19 | 7:27/mi
24M
2:49:46
24.00 mi
Rank: #7475 (-25)
23M → 24M
7:24 | 7:24/mi
40K
2:56:14
24.85 mi
Rank: #7489 (-14)
24M → 40K
6:28 | 7:34/mi
25.2M
2:59:03
25.20 mi
Rank: #7500 (-11)
40K → 25.2M
2:49 | 8:11/mi
FINISH
3:06:28
26.22 mi
Rank: #7556 (-56)
25.2M → FINISH
7:25 | 7:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:31:16
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:35:12
Pace7:16 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5121:246:5421:24
6:54
-
10K
6.21 mi10:48:3043:036:5621:39
6:59
+0:05
15K
9.32 mi11:10:021:04:356:5621:32
6:56
-0:03
20K
12.43 mi11:32:021:26:356:5922:00
7:05
+0:09
HALF
13.11 mi11:36:431:31:166:584:41
6:53
-0:12
25K
15.53 mi11:53:361:48:096:5816:53
6:58
+0:05
30K
18.64 mi12:15:562:10:297:0022:20
7:12
+0:14
20M
20.00 mi12:25:432:20:167:019:47
7:13
+0:01
21M
21.00 mi12:33:172:27:507:037:34
7:34
+0:21
35K
21.75 mi12:38:302:33:037:035:13
6:59
-0:35
23M
23.00 mi12:47:492:42:227:049:19
7:27
+0:28
24M
24.00 mi12:55:132:49:467:057:24
7:24
-0:03
40K
24.85 mi13:01:412:56:147:066:28
7:34
+0:10
25.2M
25.20 mi13:04:302:59:037:072:49
8:11
+0:37
FINISH
26.22 mi13:11:553:06:287:087:25
7:17
-0:54

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

6:53 /mi

Average Pace

7:07 /mi

Slowest Pace

8:11 /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

3:03:39

98% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:49

2% of race

Average Pace: 7:07 /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 mi10:26:5121:246:5421:24
6:54
#7636
10K
6.21 mi10:48:3043:036:5621:39
6:59
#8046
15K
9.32 mi11:10:021:04:356:5621:32
6:56
#8045
20K
12.43 mi11:32:021:26:356:5922:00
7:05
#8126
HALF
13.11 mi11:36:431:31:166:584:41
6:53
#8113
25K
15.53 mi11:53:361:48:096:5816:53
6:58
#7887
30K
18.64 mi12:15:562:10:297:0022:20
7:12
#7704
20M
20.00 mi12:25:432:20:167:019:47
7:13
#7603
21M
21.00 mi12:33:172:27:507:037:34
7:34
#7529
35K
21.75 mi12:38:302:33:037:035:13
6:59
#7470
23M
23.00 mi12:47:492:42:227:049:19
7:27
#7450
24M
24.00 mi12:55:132:49:467:057:24
7:24
#7475
40K
24.85 mi13:01:412:56:147:066:28
7:34
#7489
25.2M
25.20 mi13:04:302:59:037:072:49
8:11
#7500
FINISH
26.22 mi13:11:553:06:287:087:25
7:17
#7556
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 mi7636665966598048(Top 28%)6895(Top 42%)6895(Top 314%)
10K6.21 mi3.10 mi8046-4106923-2646923-2648440(Top 29%)7163(Top 44%)7163(Top 326%)
15K9.32 mi3.11 mi8045+16913+106913+108048(Top 28%)6895(Top 42%)6895(Top 314%)
20K12.43 mi3.11 mi8126-816949-366949-368426(Top 29%)7083(Top 43%)7083(Top 322%)
HALF13.11 mi0.68 mi8113+136944+56944+57684(Top 26%)6644(Top 41%)6644(Top 302%)
25K15.53 mi2.42 mi7887+2266795+1496795+1497140(Top 25%)6210(Top 38%)6210(Top 283%)
30K18.64 mi3.11 mi7704+1836643+1526643+1527317(Top 25%)6205(Top 38%)6205(Top 282%)
20M20.00 mi1.36 mi7603+1016564+796564+796976(Top 24%)5890(Top 36%)5890(Top 268%)
21M21.00 mi1.00 mi7529+746496+686496+686916(Top 24%)5726(Top 35%)5726(Top 261%)
35K21.75 mi0.75 mi7470+596444+526444+526876(Top 24%)5733(Top 35%)5733(Top 261%)
23M23.00 mi1.25 mi7450+206413+316413+318438(Top 29%)6563(Top 40%)6563(Top 299%)
24M24.00 mi1.00 mi7475-256402+116402+119299(Top 32%)6934(Top 42%)6934(Top 315%)
40K24.85 mi0.85 mi7489-146378+246378+249263(Top 32%)6818(Top 42%)6818(Top 310%)
25.2M25.20 mi0.35 mi7500-116371+76371+79306(Top 32%)6763(Top 41%)6763(Top 308%)
FINISH26.22 mi1.02 mi7556-566383-126383-129671(Top 33%)6943(Top 42%)6943(Top 316%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21
+97ft-345ft

Overall

8048

Males

6895

M40-44

6895

5K→10K

3.1 - 6.2 mi

Top 29%
×5
+79ft-138ft

Overall

8440

Males

7163

M40-44

7163

10K→15K

6.2 - 9.3 mi

Top 28%
×3
+67ft-78ft

Overall

8048

Males

6895

M40-44

6895

15K→20K

9.3 - 12.4 mi

Top 29%
×5
+106ft-86ft

Overall

8426

Males

7083

M40-44

7083

20K→HALF

12.4 - 13.1 mi

Top 26%
×2
+19ft-37ft

Overall

7684

Males

6644

M40-44

6644

HALF→25K

13.1 - 15.5 mi

Top 25%
×4
+66ft-88ft

Overall

7140

Males

6210

M40-44

6210

25K→30K

15.5 - 18.6 mi

Top 25%
×9
+181ft-148ft

Overall

7317

Males

6205

M40-44

6205

30K→20M

18.6 - 20.0 mi

Top 24%
×5
+64ft-50ft

Overall

6976

Males

5890

M40-44

5890

20M→21M

20.0 - 21.0 mi

Top 24%
×8
+106ft-24ft

Overall

6916

Males

5726

M40-44

5726

21M→35K

21.0 - 21.8 mi

Top 24%
×7
+17ft-86ft

Overall

6876

Males

5733

M40-44

5733

35K→23M

21.8 - 23.0 mi

Top 29%
×5
+23ft-63ft

Overall

8438

Males

6563

M40-44

6563

23M→24M

23.0 - 24.0 mi

Top 32%
×6
+12ft-82ft

Overall

9299

Males

6934

M40-44

6934

24M→40K

24.0 - 24.9 mi

Top 32%
×1
+6ft-20ft

Overall

9263

Males

6818

M40-44

6818

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1
+13ft-16ft

Overall

9306

Males

6763

M40-44

6763

25.2M→FINISH

25.2 - 26.2 mi

Top 33%
×2
+22ft-21ft

Overall

9671

Males

6943

M40-44

6943

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1417*
Passed By
1043
Net Change
+80
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7636
5K → 10K84200-410#7636#8046
10K → 15K136135+1#8046#8045
15K → 20K108189-81#8045#8126
20K → HALF2512+13#8126#8113
HALF → 25K249*23+226#8113#7887
25K → 30K237*54+183#7887#7704
30K → 20M12625+101#7704#7603
20M → 21M10430+74#7603#7529
21M → 35K7920+59#7529#7470
35K → 23M8666+20#7470#7450
23M → 24M5883-25#7450#7475
24M → 40K5973-14#7475#7489
40K → 25.2M2536-11#7489#7500
25.2M → FINISH4197-56#7500#7556
TOTALS1417*1043+80

* 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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing