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BOSTON MARATHON 2026

Brian Callow

Bib: 27901•M

MA

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
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
36:31
3.11 mi
Rank: #28689
Start → 5K
36:31 | 11:46/mi
10K
1:16:03
6.21 mi
Rank: #28827 (-138)
5K → 10K
39:32 | 12:44/mi
15K
1:54:44
9.32 mi
Rank: #28787 (+40)
10K → 15K
38:41 | 12:28/mi
20K
2:39:43
12.43 mi
Rank: #28888 (-101)
15K → 20K
44:59 | 14:29/mi
HALF
2:47:38
13.11 mi
Rank: #28869 (+19)
20K → HALF
7:55 | 11:37/mi
25K
3:18:21
15.53 mi
Rank: #28792 (+77)
HALF → 25K
30:43 | 12:40/mi
30K
4:12:13
18.64 mi
Rank: #28920 (-128)
25K → 30K
53:52 | 17:21/mi
20M
4:33:13
20.00 mi
Rank: #28922 (-2)
30K → 20M
21:00 | 15:28/mi
21M
4:49:33
21.00 mi
Rank: #28926 (-4)
20M → 21M
16:20 | 16:20/mi
35K
4:58:56
21.75 mi
Rank: #28914 (+12)
21M → 35K
9:23 | 12:33/mi
23M
5:20:58
23.00 mi
Rank: #28952 (-38)
35K → 23M
22:02 | 17:37/mi
24M
5:33:15
24.00 mi
Rank: #28943 (+9)
23M → 24M
12:17 | 12:17/mi
40K
5:43:48
24.85 mi
Rank: #28922 (+21)
24M → 40K
10:33 | 12:21/mi
25.2M
5:48:14
25.20 mi
Rank: #28911 (+11)
40K → 25.2M
4:26 | 12:52/mi
FINISH
5:59:32
26.22 mi
Rank: #28870 (+41)
25.2M → FINISH
11:18 | 11:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:47:38
Pace12:48 /mi
2nd Half
Distance13.11 mi
Time3:11:54
Pace14:39 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:1536:3111:4636:31
11:46
-
10K
6.21 mi12:37:471:16:0312:1539:32
12:44
+0:58
15K
9.32 mi13:16:281:54:4412:1938:41
12:28
-0:16
20K
12.43 mi14:01:272:39:4312:5244:59
14:29
+2:01
HALF
13.11 mi14:09:222:47:3812:487:55
11:37
-2:52
25K
15.53 mi14:40:053:18:2112:4730:43
12:40
+1:03
30K
18.64 mi15:33:574:12:1313:3253:52
17:21
+4:41
20M
20.00 mi15:54:574:33:1313:4021:00
15:28
-1:53
21M
21.00 mi16:11:174:49:3313:4816:20
16:20
+0:52
35K
21.75 mi16:20:404:58:5613:459:23
12:33
-3:47
23M
23.00 mi16:42:425:20:5813:5822:02
17:37
+5:04
24M
24.00 mi16:54:595:33:1513:5412:17
12:17
-5:20
40K
24.85 mi17:05:325:43:4813:5010:33
12:21
+0:04
25.2M
25.20 mi17:09:585:48:1413:504:26
12:52
+0:31
FINISH
26.22 mi17:21:165:59:3213:4411:18
11:06
-1:46

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

11:06 /mi

Average Pace

13:43 /mi

Slowest Pace

17:37 /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

19:13

5% of race

Time at Steady Pace

3:02:06

51% of race

Time at Slower Pace

2:38:13

44% of race

Average Pace: 13:43 /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 mi11:58:1536:3111:4636:31
11:46
#28689
10K
6.21 mi12:37:471:16:0312:1539:32
12:44
#28827
15K
9.32 mi13:16:281:54:4412:1938:41
12:28
#28787
20K
12.43 mi14:01:272:39:4312:5244:59
14:29
#28888
HALF
13.11 mi14:09:222:47:3812:487:55
11:37
#28869
25K
15.53 mi14:40:053:18:2112:4730:43
12:40
#28792
30K
18.64 mi15:33:574:12:1313:3253:52
17:21
#28920
20M
20.00 mi15:54:574:33:1313:4021:00
15:28
#28922
21M
21.00 mi16:11:174:49:3313:4816:20
16:20
#28926
35K
21.75 mi16:20:404:58:5613:459:23
12:33
#28914
23M
23.00 mi16:42:425:20:5813:5822:02
17:37
#28952
24M
24.00 mi16:54:595:33:1513:5412:17
12:17
#28943
40K
24.85 mi17:05:325:43:4813:5010:33
12:21
#28922
25.2M
25.20 mi17:09:585:48:1413:504:26
12:52
#28911
FINISH
26.22 mi17:21:165:59:3213:4411:18
11:06
#28870
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi28689162391623928618(Top 99%)16211(Top 99%)16211(Top 1087%)
10K6.21 mi3.10 mi28827-13816279-4016279-4028876(Top 100%)16292(Top 100%)16292(Top 1093%)
15K9.32 mi3.11 mi28787+4016269+1016269+1028618(Top 99%)16211(Top 99%)16211(Top 1087%)
20K12.43 mi3.11 mi28888-10116294-2516294-2528962(Top 100%)16311(Top 100%)16311(Top 1094%)
HALF13.11 mi0.68 mi28869+1916287+716287+727986(Top 96%)15938(Top 98%)15938(Top 1069%)
25K15.53 mi2.42 mi28792+7716267+2016267+2028031(Top 97%)15960(Top 98%)15960(Top 1070%)
30K18.64 mi3.11 mi28920-12816300-3316300-3328987(Top 100%)16320(Top 100%)16320(Top 1095%)
20M20.00 mi1.36 mi28922-216301-116301-128731(Top 99%)16197(Top 99%)16197(Top 1086%)
21M21.00 mi1.00 mi28926-416299+216299+228690(Top 99%)16167(Top 99%)16167(Top 1084%)
35K21.75 mi0.75 mi28914+1216298+116298+127305(Top 94%)15497(Top 95%)15497(Top 1039%)
23M23.00 mi1.25 mi28952-3816304-616304-628956(Top 100%)16303(Top 100%)16303(Top 1093%)
24M24.00 mi1.00 mi28943+916301+316301+326954(Top 93%)15267(Top 93%)15267(Top 1024%)
40K24.85 mi0.85 mi28922+2116296+516296+526326(Top 91%)14919(Top 91%)14919(Top 1001%)
25.2M25.20 mi0.35 mi28911+1116289+716289+725857(Top 89%)14729(Top 90%)14729(Top 988%)
FINISH26.22 mi1.02 mi28870+4116276+1316276+1326261(Top 90%)14893(Top 91%)14893(Top 999%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21
+97ft-345ft

Overall

28618

Males

16211

M55-59

16211

5K→10K

3.1 - 6.2 mi

Top 100%
×5
+79ft-138ft

Overall

28876

Males

16292

M55-59

16292

10K→15K

6.2 - 9.3 mi

Top 99%
×3
+67ft-78ft

Overall

28618

Males

16211

M55-59

16211

15K→20K

9.3 - 12.4 mi

Top 100%
×5
+106ft-86ft

Overall

28962

Males

16311

M55-59

16311

20K→HALF

12.4 - 13.1 mi

Top 96%
×2
+19ft-37ft

Overall

27986

Males

15938

M55-59

15938

HALF→25K

13.1 - 15.5 mi

Top 97%
×4
+66ft-88ft

Overall

28031

Males

15960

M55-59

15960

25K→30K

15.5 - 18.6 mi

Top 100%
×9
+181ft-148ft

Overall

28987

Males

16320

M55-59

16320

30K→20M

18.6 - 20.0 mi

Top 99%
×5
+64ft-50ft

Overall

28731

Males

16197

M55-59

16197

20M→21M

20.0 - 21.0 mi

Top 99%
×8
+106ft-24ft

Overall

28690

Males

16167

M55-59

16167

21M→35K

21.0 - 21.8 mi

Top 94%
×7
+17ft-86ft

Overall

27305

Males

15497

M55-59

15497

35K→23M

21.8 - 23.0 mi

Top 100%
×5
+23ft-63ft

Overall

28956

Males

16303

M55-59

16303

23M→24M

23.0 - 24.0 mi

Top 93%
×6
+12ft-82ft

Overall

26954

Males

15267

M55-59

15267

24M→40K

24.0 - 24.9 mi

Top 91%
×1
+6ft-20ft

Overall

26326

Males

14919

M55-59

14919

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1
+13ft-16ft

Overall

25857

Males

14729

M55-59

14729

25.2M→FINISH

25.2 - 26.2 mi

Top 90%
×2
+22ft-21ft

Overall

26261

Males

14893

M55-59

14893

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
279
Passed By
460
Net Change
-181
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28689
5K → 10K11149-138#28689#28827
10K → 15K5616+40#28827#28787
15K → 20K6107-101#28787#28888
20K → HALF212+19#28888#28869
HALF → 25K781+77#28869#28792
25K → 30K2130-128#28792#28920
30K → 20M46-2#28920#28922
20M → 21M48-4#28922#28926
21M → 35K120+12#28926#28914
35K → 23M139-38#28914#28952
23M → 24M90+9#28952#28943
24M → 40K221+21#28943#28922
40K → 25.2M110+11#28922#28911
25.2M → FINISH421+41#28911#28870
TOTALS279460-181
📊

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