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BOSTON MARATHON 2026

Kalim Armstrong

Bib: 12186β€’M

ME

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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 (M45-49)
#0 / 2413
Race Day Weather
51Β°/41Β°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
22:18
3.11 mi
Rank: #9982
Start β†’ 5K
22:18 | 7:11/mi
10K
44:26
6.21 mi
Rank: #9768 (+214)
5K β†’ 10K
22:08 | 7:08/mi
15K
1:06:38
9.32 mi
Rank: #9684 (+84)
10K β†’ 15K
22:12 | 7:09/mi
20K
1:29:17
12.43 mi
Rank: #9749 (-65)
15K β†’ 20K
22:39 | 7:18/mi
HALF
1:34:17
13.11 mi
Rank: #9838 (-89)
20K β†’ HALF
5:00 | 7:21/mi
25K
1:53:12
15.53 mi
Rank: #10467 (-629)
HALF β†’ 25K
18:55 | 7:49/mi
30K
2:21:35
18.64 mi
Rank: #12678 (-2211)
25K β†’ 30K
28:23 | 9:09/mi
20M
2:34:20
20.00 mi
Rank: #13419 (-741)
30K β†’ 20M
12:45 | 9:24/mi
21M
2:44:30
21.00 mi
Rank: #14010 (-591)
20M β†’ 21M
10:10 | 10:10/mi
35K
2:51:17
21.75 mi
Rank: #14299 (-289)
21M β†’ 35K
6:47 | 9:05/mi
23M
3:02:53
23.00 mi
Rank: #14735 (-436)
35K β†’ 23M
11:36 | 9:17/mi
24M
3:11:28
24.00 mi
Rank: #14880 (-145)
23M β†’ 24M
8:35 | 8:35/mi
40K
3:20:01
24.85 mi
Rank: #15312 (-432)
24M β†’ 40K
8:33 | 10:00/mi
25.2M
3:23:02
25.20 mi
Rank: #15272 (+40)
40K β†’ 25.2M
3:01 | 8:45/mi
FINISH
3:31:09
26.22 mi
Rank: #15263 (+9)
25.2M β†’ FINISH
8:07 | 7:58/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:17
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
πŸ“ŠPositive Split: 24.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2822:187:1122:18
7:11
-
10K
6.21 mi11:12:3644:267:1022:08
7:08
-0:03
15K
9.32 mi11:34:481:06:387:0922:12
7:09
+0:01
20K
12.43 mi11:57:271:29:177:1222:39
7:18
+0:09
HALF
13.11 mi12:02:271:34:177:125:00
7:21
+0:03
25K
15.53 mi12:21:221:53:127:1818:55
7:49
+0:28
30K
18.64 mi12:49:452:21:357:3628:23
9:09
+1:20
20M
20.00 mi13:02:302:34:207:4412:45
9:24
+0:15
21M
21.00 mi13:12:402:44:307:5110:10
10:10
+0:46
35K
21.75 mi13:19:272:51:177:536:47
9:05
-1:05
23M
23.00 mi13:31:033:02:537:5811:36
9:17
+0:12
24M
24.00 mi13:39:383:11:287:598:35
8:35
-0:42
40K
24.85 mi13:48:113:20:018:038:33
10:00
+1:25
25.2M
25.20 mi13:51:123:23:028:043:01
8:45
-1:15
FINISH
26.22 mi13:59:193:31:098:048:07
7:58
-0:47

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

7:08 /mi

Average Pace

8:04 /mi

Slowest Pace

10:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:01:19

57% of race

Time at Steady Pace

18:23

9% of race

Time at Slower Pace

1:11:27

34% of race

Average Pace: 8:03 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:50:2822:187:1122:18
7:11
#9982
10K
6.21 mi11:12:3644:267:1022:08
7:08
#9768
15K
9.32 mi11:34:481:06:387:0922:12
7:09
#9684
20K
12.43 mi11:57:271:29:177:1222:39
7:18
#9749
HALF
13.11 mi12:02:271:34:177:125:00
7:21
#9838
25K
15.53 mi12:21:221:53:127:1818:55
7:49
#10467
30K
18.64 mi12:49:452:21:357:3628:23
9:09
#12678
20M
20.00 mi13:02:302:34:207:4412:45
9:24
#13419
21M
21.00 mi13:12:402:44:307:5110:10
10:10
#14010
35K
21.75 mi13:19:272:51:177:536:47
9:05
#14299
23M
23.00 mi13:31:033:02:537:5811:36
9:17
#14735
24M
24.00 mi13:39:383:11:287:598:35
8:35
#14880
40K
24.85 mi13:48:113:20:018:038:33
10:00
#15312
25.2M
25.20 mi13:51:123:23:028:043:01
8:45
#15272
FINISH
26.22 mi13:59:193:31:098:048:07
7:58
#15263
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9982808080809650(Top 33%)7852(Top 48%)7852(Top 325%)
10K6.21 mi3.10 mi9768+2147959+1217959+1219577(Top 33%)7849(Top 48%)7849(Top 325%)
15K9.32 mi3.11 mi9684+847898+617898+619650(Top 33%)7852(Top 48%)7852(Top 325%)
20K12.43 mi3.11 mi9749-657899-17899-110079(Top 35%)7970(Top 49%)7970(Top 330%)
HALF13.11 mi0.68 mi9838-897946-477946-4711495(Top 40%)8726(Top 53%)8726(Top 362%)
25K15.53 mi2.42 mi10467-6298213-2678213-26713834(Top 48%)9590(Top 59%)9590(Top 397%)
30K18.64 mi3.11 mi12678-22119166-9539166-95320210(Top 70%)12283(Top 75%)12283(Top 509%)
20M20.00 mi1.36 mi13419-7419464-2989464-29820605(Top 71%)12380(Top 76%)12380(Top 513%)
21M21.00 mi1.00 mi14010-5919690-2269690-22620946(Top 72%)12519(Top 77%)12519(Top 519%)
35K21.75 mi0.75 mi14299-2899810-1209810-12020250(Top 70%)12102(Top 74%)12102(Top 502%)
23M23.00 mi1.25 mi14735-4369938-1289938-12819685(Top 68%)11785(Top 72%)11785(Top 488%)
24M24.00 mi1.00 mi14880-1459980-429980-4217342(Top 60%)10622(Top 65%)10622(Top 440%)
40K24.85 mi0.85 mi15312-43210139-15910139-15921897(Top 75%)12759(Top 78%)12759(Top 529%)
25.2M25.20 mi0.35 mi15272+4010117+2210117+2213176(Top 45%)8684(Top 53%)8684(Top 360%)
FINISH26.22 mi1.02 mi15263+910100+1710100+1714923(Top 51%)9471(Top 58%)9471(Top 392%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
Γ—21
+97ft-345ft

Overall

9650

Males

7852

M45-49

7852

5K→10K

3.1 - 6.2 mi

Top 33%
Γ—5
+79ft-138ft

Overall

9577

Males

7849

M45-49

7849

10K→15K

6.2 - 9.3 mi

Top 33%
Γ—3
+67ft-78ft

Overall

9650

Males

7852

M45-49

7852

15K→20K

9.3 - 12.4 mi

Top 35%
Γ—5
+106ft-86ft

Overall

10079

Males

7970

M45-49

7970

20K→HALF

12.4 - 13.1 mi

Top 40%
Γ—2
+19ft-37ft

Overall

11495

Males

8726

M45-49

8726

HALF→25K

13.1 - 15.5 mi

Top 48%
Γ—4
+66ft-88ft

Overall

13834

Males

9590

M45-49

9590

25K→30K

15.5 - 18.6 mi

Top 70%
Γ—9
+181ft-148ft

Overall

20210

Males

12283

M45-49

12283

30K→20M

18.6 - 20.0 mi

Top 71%
Γ—5
+64ft-50ft

Overall

20605

Males

12380

M45-49

12380

20M→21M

20.0 - 21.0 mi

Top 72%
Γ—8
+106ft-24ft

Overall

20946

Males

12519

M45-49

12519

21M→35K

21.0 - 21.8 mi

Top 70%
Γ—7
+17ft-86ft

Overall

20250

Males

12102

M45-49

12102

35K→23M

21.8 - 23.0 mi

Top 68%
Γ—5
+23ft-63ft

Overall

19685

Males

11785

M45-49

11785

23M→24M

23.0 - 24.0 mi

Top 60%
Γ—6
+12ft-82ft

Overall

17342

Males

10622

M45-49

10622

24M→40K

24.0 - 24.9 mi

Top 75%
Γ—1
+6ft-20ft

Overall

21897

Males

12759

M45-49

12759

40K→25.2M

24.9 - 25.2 mi

Top 45%
Γ—1
+13ft-16ft

Overall

13176

Males

8684

M45-49

8684

25.2M→FINISH

25.2 - 26.2 mi

Top 51%
Γ—2
+22ft-21ft

Overall

14923

Males

9471

M45-49

9471

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1021
Passed By
6300
Net Change
-5281
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#9982
5K β†’ 10K368154+214#9982#9768
10K β†’ 15K209125+84#9768#9684
15K β†’ 20K122187-65#9684#9749
20K β†’ HALF1099-89#9749#9838
HALF β†’ 25K30657-629#9838#10467
25K β†’ 30K142225-2211#10467#12678
30K β†’ 20M25766-741#12678#13419
20M β†’ 21M14605-591#13419#14010
21M β†’ 35K20309-289#14010#14299
35K β†’ 23M34470-436#14299#14735
23M β†’ 24M31176-145#14735#14880
24M β†’ 40K19451-432#14880#15312
40K β†’ 25.2M488+40#15312#15272
25.2M β†’ FINISH7768+9#15272#15263
TOTALS10216300-5281
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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