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BOSTON MARATHON 2024

Brian Callow

Bib: 26046•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M55-59)
#0 / 1529
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:04/mi
28:09
↑ 97↓ 3451.5%
10K· 6.21 mi
9:16/mi
56:55
↑ 79↓ 1380.4%
15K· 9.32 mi
9:19/mi
1:25:52
↑ 67↓ 78
20K· 12.43 mi
9:53/mi
1:56:34
↑ 106↓ 860.1%
Half· 13.11 mi
10:26/mi
2:03:41
↑ 19↓ 370.5%
25K· 15.53 mi
11:02/mi
2:30:26
↑ 66↓ 880.2%
30K· 18.64 mi
12:33/mi
3:09:26
↑ 181↓ 1480.2%
20M
14:49/mi
3:29:34
↑ 64↓ 500.2%
21M
13:42/mi
3:43:16
↑ 106↓ 241.6%
35K· 21.75 mi
11:55/mi
3:52:11
↑ 17↓ 861.7%
23M
14:52/mi
4:10:48
↑ 23↓ 630.6%
24M
17:13/mi
4:28:01
↓ 821.3%
40K· 24.85 mi
10:54/mi
4:37:20
↓ 200.3%
25.2M
10:58/mi
4:41:07
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
4:50:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:41
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:46:45
Pace12:43 /mi
📊Positive Split: 34.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4428:099:0428:09
9:04
-
10K
6.21 mi12:13:3056:559:1028:46
9:16
+0:12
15K
9.32 mi12:42:271:25:529:1328:57
9:19
+0:03
20K
12.43 mi13:13:091:56:349:2330:42
9:53
+0:34
Half
13.11 mi13:20:162:03:419:267:07
10:26
+0:33
25K
15.53 mi13:47:012:30:269:4126:45
11:02
+0:36
30K
18.64 mi14:26:013:09:2610:1039:00
12:33
+1:31
20M
20.00 mi14:46:093:29:3410:2920:08
14:49
+2:16
21M
21.00 mi14:59:513:43:1610:3813:42
13:42
-1:07
35K
21.75 mi15:08:463:52:1110:418:55
11:55
-1:47
23M
23.00 mi15:27:234:10:4810:5418:37
14:52
+2:57
24M
24.00 mi15:44:364:28:0111:1017:13
17:13
+2:21
40K
24.85 mi15:53:554:37:2011:099:19
10:54
-6:19
25.2M
25.20 mi15:57:424:41:0711:093:47
10:58
+0:04
Finish
26.22 mi16:07:014:50:2611:059:19
9:09
-1:49

Checkpoints & Pacing

📈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

9:04 /mi

Average Pace

11:05 /mi

Slowest Pace

17:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:11

33% of race

Time at Steady Pace

1:26:35

30% of race

Time at Slower Pace

1:48:40

37% of race

Average Pace: 11:05 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:44:4428:099:0428:09
9:04
#20301
10K
6.21 mi12:13:3056:559:1028:46
9:16
#20510
15K
9.32 mi12:42:271:25:529:1328:57
9:19
#20371
20K
12.43 mi13:13:091:56:349:2330:42
9:53
#20361
Half
13.11 mi13:20:162:03:419:267:07
10:26
#20458
25K
15.53 mi13:47:012:30:269:4126:45
11:02
#20652
30K
18.64 mi14:26:013:09:2610:1039:00
12:33
#21169
20M
20.00 mi14:46:093:29:3410:2920:08
14:49
#21648
21M
21.00 mi14:59:513:43:1610:3813:42
13:42
#21681
35K
21.75 mi15:08:463:52:1110:418:55
11:55
#21669
23M
23.00 mi15:27:234:10:4810:5418:37
14:52
#21930
24M
24.00 mi15:44:364:28:0111:1017:13
17:13
#22396
40K
24.85 mi15:53:554:37:2011:099:19
10:54
#22230
25.2M
25.20 mi15:57:424:41:0711:093:47
10:58
#22150
Finish
26.22 mi16:07:014:50:2611:059:19
9:09
#21964
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20301122161221620078(Top 79%)12209(Top 84%)12209(Top 798%)
10K6.21 mi3.10 mi20510-20912341-12512341-12520661(Top 81%)12437(Top 85%)12437(Top 813%)
15K9.32 mi3.11 mi20371+13912304+3712304+3720078(Top 79%)12209(Top 84%)12209(Top 798%)
20K12.43 mi3.11 mi20361+1012306-212306-220277(Top 79%)12264(Top 84%)12264(Top 802%)
Half13.11 mi0.68 mi20458-9712345-3912345-3922484(Top 88%)13219(Top 91%)13219(Top 865%)
25K15.53 mi2.42 mi20652-19412415-7012415-7021568(Top 84%)12753(Top 87%)12753(Top 834%)
30K18.64 mi3.11 mi21169-51712599-18412599-18422740(Top 89%)13175(Top 90%)13175(Top 862%)
20M20.00 mi1.36 mi21648-47912786-18712786-18724628(Top 96%)14047(Top 96%)14047(Top 919%)
21M21.00 mi1.00 mi21681-3312792-612792-621907(Top 86%)12625(Top 87%)12625(Top 826%)
35K21.75 mi0.75 mi21669+1212769+2312769+2321647(Top 85%)12435(Top 85%)12435(Top 813%)
23M23.00 mi1.25 mi21930-26112883-11412883-11424560(Top 96%)13962(Top 96%)13962(Top 913%)
24M24.00 mi1.00 mi22396-46613095-21213095-21225340(Top 99%)14422(Top 99%)14422(Top 943%)
40K24.85 mi0.85 mi22230+16612995+10012995+10017812(Top 70%)10360(Top 71%)10360(Top 678%)
25.2M25.20 mi0.35 mi22150+8012945+5012945+5014388(Top 56%)8625(Top 59%)8625(Top 564%)
Finish26.22 mi1.02 mi21964+18612837+10812837+10814902(Top 58%)8952(Top 61%)8952(Top 585%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

20078

Males

12209

M55-59

12209

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

20661

Males

12437

M55-59

12437

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

20078

Males

12209

M55-59

12209

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20277

Males

12264

M55-59

12264

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

22484

Males

13219

M55-59

13219

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

21568

Males

12753

M55-59

12753

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

22740

Males

13175

M55-59

13175

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

24628

Males

14047

M55-59

14047

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

21907

Males

12625

M55-59

12625

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

21647

Males

12435

M55-59

12435

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

24560

Males

13962

M55-59

13962

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

25340

Males

14422

M55-59

14422

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

17812

Males

10360

M55-59

10360

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14388

Males

8625

M55-59

8625

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

14902

Males

8952

M55-59

8952

Passing Analysis

Category:
Athletes Passed
1413
Passed By
3076
Net Change
-1663
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20301
5K → 10K188397-209#20301#20510
10K → 15K269130+139#20510#20371
15K → 20K208198+10#20371#20361
20K → Half10107-97#20361#20458
Half → 25K97291-194#20458#20652
25K → 30K59576-517#20652#21169
30K → 20M12491-479#21169#21648
20M → 21M4982-33#21648#21681
21M → 35K5846+12#21681#21669
35K → 23M21282-261#21669#21930
23M → 24M4470-466#21930#22396
24M → 40K1704+166#22396#22230
40K → 25.2M800+80#22230#22150
25.2M → Finish1882+186#22150#21964
TOTALS14133076-1663
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing