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BOSTON MARATHON 2023

Brian Collins

Bib: 3620•M

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 28%
Masters (Masters Men)
#0 / 9891
Top 14%
Division (M40-44)
#0 / 2241
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #4361
Start → 5K
21:02 | 6:46/mi
10K· 6.21 mi
41:38
Rank: #3979 (+382)
5K → 10K
20:36 | 6:38/mi
15K· 9.32 mi
1:02:06
Rank: #3655 (+324)
10K → 15K
20:28 | 6:35/mi
20K· 12.43 mi
1:22:58
Rank: #3658 (-3)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:27:28
Rank: #3639 (+19)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:55
Rank: #3684 (-45)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:05:45
Rank: #3813 (-129)
25K → 30K
21:50 | 7:02/mi
20M
2:15:30
Rank: #3923 (-110)
30K → 20M
9:45 | 7:10/mi
21M
2:23:06
Rank: #4003 (-80)
20M → 21M
7:36 | 7:36/mi
35K· 21.75 mi
2:28:31
Rank: #4136 (-133)
21M → 35K
5:25 | 7:14/mi
23M
2:37:47
Rank: #4266 (-130)
35K → 23M
9:16 | 7:24/mi
24M
2:44:57
Rank: #4365 (-99)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
2:51:42
Rank: #4520 (-155)
24M → 40K
6:45 | 7:54/mi
25.2M
2:54:30
Rank: #4563 (-43)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:02:08
Rank: #4643 (-80)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:28
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:34:40
Pace7:13 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3921:026:4621:02
6:46
-
10K
6.21 mi10:43:1541:386:4220:36
6:38
-0:08
15K
9.32 mi11:03:431:02:066:4020:28
6:35
-0:03
20K
12.43 mi11:24:351:22:586:4120:52
6:43
+0:08
Half
13.11 mi11:29:051:27:286:404:30
6:36
-0:07
25K
15.53 mi11:45:321:43:556:4116:27
6:47
+0:11
30K
18.64 mi12:07:222:05:456:4521:50
7:02
+0:15
20M
20.00 mi12:17:072:15:306:469:45
7:10
+0:08
21M
21.00 mi12:24:432:23:066:497:36
7:36
+0:26
35K
21.75 mi12:30:082:28:316:505:25
7:14
-0:22
23M
23.00 mi12:39:242:37:476:529:16
7:24
+0:10
24M
24.00 mi12:46:342:44:576:527:10
7:10
-0:14
40K
24.85 mi12:53:192:51:426:546:45
7:54
+0:44
25.2M
25.20 mi12:56:072:54:306:552:48
8:07
+0:13
Finish
26.22 mi13:03:453:02:086:577:38
7:29
-0:38

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

6:35 /mi

Average Pace

6:57 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:55

57% of race

Time at Steady Pace

44:10

24% of race

Time at Slower Pace

34:03

19% of race

Average Pace: 6:57 /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 mi10:22:3921:026:4621:02
6:46
#4361
10K
6.21 mi10:43:1541:386:4220:36
6:38
#3979
15K
9.32 mi11:03:431:02:066:4020:28
6:35
#3655
20K
12.43 mi11:24:351:22:586:4120:52
6:43
#3658
Half
13.11 mi11:29:051:27:286:404:30
6:36
#3639
25K
15.53 mi11:45:321:43:556:4116:27
6:47
#3684
30K
18.64 mi12:07:222:05:456:4521:50
7:02
#3813
20M
20.00 mi12:17:072:15:306:469:45
7:10
#3923
21M
21.00 mi12:24:432:23:066:497:36
7:36
#4003
35K
21.75 mi12:30:082:28:316:505:25
7:14
#4136
23M
23.00 mi12:39:242:37:476:529:16
7:24
#4266
24M
24.00 mi12:46:342:44:576:527:10
7:10
#4365
40K
24.85 mi12:53:192:51:426:546:45
7:54
#4520
25.2M
25.20 mi12:56:072:54:306:552:48
8:07
#4563
Finish
26.22 mi13:03:453:02:086:577:38
7:29
#4643
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4361407240723204(Top 12%)3050(Top 20%)3050(Top 136%)
10K6.21 mi3.10 mi3979+3823743+3293743+3293724(Top 14%)3519(Top 23%)3519(Top 157%)
15K9.32 mi3.11 mi3655+3243453+2903453+2903204(Top 12%)3050(Top 20%)3050(Top 136%)
20K12.43 mi3.11 mi3658-33462-93462-93708(Top 14%)3507(Top 23%)3507(Top 156%)
Half13.11 mi0.68 mi3639+193444+183444+183443(Top 13%)3274(Top 22%)3274(Top 146%)
25K15.53 mi2.42 mi3684-453481-373481-374025(Top 15%)3776(Top 25%)3776(Top 168%)
30K18.64 mi3.11 mi3813-1293596-1153596-1154527(Top 17%)4191(Top 28%)4191(Top 187%)
20M20.00 mi1.36 mi3923-1103695-993695-994970(Top 19%)4516(Top 30%)4516(Top 202%)
21M21.00 mi1.00 mi4003-803760-653760-655064(Top 19%)4517(Top 30%)4517(Top 202%)
35K21.75 mi0.75 mi4136-1333874-1143874-1146719(Top 25%)5705(Top 38%)5705(Top 255%)
23M23.00 mi1.25 mi4266-1303993-1193993-1195842(Top 22%)5067(Top 33%)5067(Top 226%)
24M24.00 mi1.00 mi4365-994080-874080-875532(Top 21%)4794(Top 32%)4794(Top 214%)
40K24.85 mi0.85 mi4520-1554210-1304210-1309248(Top 35%)6934(Top 46%)6934(Top 309%)
25.2M25.20 mi0.35 mi4563-434244-344244-347096(Top 27%)5610(Top 37%)5610(Top 250%)
Finish26.22 mi1.02 mi4643-804300-564300-568427(Top 32%)6403(Top 42%)6403(Top 286%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3204

Males

3050

M40-44

3050

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3724

Males

3519

M40-44

3519

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3204

Males

3050

M40-44

3050

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3708

Males

3507

M40-44

3507

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3443

Males

3274

M40-44

3274

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4025

Males

3776

M40-44

3776

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4527

Males

4191

M40-44

4191

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

4970

Males

4516

M40-44

4516

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5064

Males

4517

M40-44

4517

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6719

Males

5705

M40-44

5705

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5842

Males

5067

M40-44

5067

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5532

Males

4794

M40-44

4794

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9248

Males

6934

M40-44

6934

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7096

Males

5610

M40-44

5610

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8427

Males

6403

M40-44

6403

Passing Analysis

Category:
Athletes Passed
1261
Passed By
1543
Net Change
-282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4361
5K → 10K46583+382#4361#3979
10K → 15K33915+324#3979#3655
15K → 20K9497-3#3655#3658
20K → Half3011+19#3658#3639
Half → 25K67112-45#3639#3684
25K → 30K65194-129#3684#3813
30K → 20M32142-110#3813#3923
20M → 21M46126-80#3923#4003
21M → 35K9142-133#4003#4136
35K → 23M37167-130#4136#4266
23M → 24M27126-99#4266#4365
24M → 40K18173-155#4365#4520
40K → 25.2M851-43#4520#4563
25.2M → Finish24104-80#4563#4643
TOTALS12611543-282
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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