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BOSTON MARATHON 2023

David Brennan

Bib: 19232•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 48%
Division (M60-64)
#0 / 1110
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:35
Rank: #13337
Start → 5K
24:35 | 7:55/mi
10K· 6.21 mi
48:59
Rank: #13435 (-98)
5K → 10K
24:24 | 7:51/mi
15K· 9.32 mi
1:13:38
Rank: #13570 (-135)
10K → 15K
24:39 | 7:56/mi
20K· 12.43 mi
1:38:38
Rank: #13592 (-22)
15K → 20K
25:00 | 8:03/mi
Half· 13.11 mi
1:44:01
Rank: #13584 (+8)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:03:26
Rank: #13428 (+156)
Half → 25K
19:25 | 8:00/mi
30K· 18.64 mi
2:28:27
Rank: #13014 (+414)
25K → 30K
25:01 | 8:03/mi
20M
2:39:13
Rank: #12707 (+307)
30K → 20M
10:46 | 7:55/mi
21M
2:47:39
Rank: #12514 (+193)
20M → 21M
8:26 | 8:26/mi
35K· 21.75 mi
2:53:30
Rank: #12447 (+67)
21M → 35K
5:51 | 7:49/mi
23M
3:03:45
Rank: #12357 (+90)
35K → 23M
10:15 | 8:11/mi
24M
3:11:23
Rank: #12203 (+154)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:17:59
Rank: #12010 (+193)
24M → 40K
6:36 | 7:43/mi
25.2M
3:20:44
Rank: #11902 (+108)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:28:00
Rank: #11615 (+287)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:44:01
Pace7:56 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:43:59
Pace7:56 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2224:357:5524:35
7:55
-
10K
6.21 mi11:47:4648:597:5324:24
7:51
-0:04
15K
9.32 mi12:12:251:13:387:5424:39
7:56
+0:05
20K
12.43 mi12:37:251:38:387:5625:00
8:03
+0:07
Half
13.11 mi12:42:481:44:017:565:23
7:53
-0:10
25K
15.53 mi13:02:132:03:267:5719:25
8:00
+0:07
30K
18.64 mi13:27:142:28:277:5825:01
8:03
+0:03
20M
20.00 mi13:38:002:39:137:5810:46
7:55
-0:08
21M
21.00 mi13:46:262:47:397:598:26
8:26
+0:31
35K
21.75 mi13:52:172:53:307:595:51
7:49
-0:37
23M
23.00 mi14:02:323:03:457:5910:15
8:11
+0:22
24M
24.00 mi14:10:103:11:237:587:38
7:38
-0:33
40K
24.85 mi14:16:463:17:597:586:36
7:43
+0:05
25.2M
25.20 mi14:19:313:20:447:582:45
7:58
+0:15
Finish
26.22 mi14:26:473:28:007:567:16
7:08
-0:50

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

7:08 /mi

Average Pace

7:56 /mi

Slowest Pace

8:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:21

13% of race

Time at Steady Pace

2:52:13

83% of race

Time at Slower Pace

8:26

4% of race

Average Pace: 7:56 /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 mi11:23:2224:357:5524:35
7:55
#13337
10K
6.21 mi11:47:4648:597:5324:24
7:51
#13435
15K
9.32 mi12:12:251:13:387:5424:39
7:56
#13570
20K
12.43 mi12:37:251:38:387:5625:00
8:03
#13592
Half
13.11 mi12:42:481:44:017:565:23
7:53
#13584
25K
15.53 mi13:02:132:03:267:5719:25
8:00
#13428
30K
18.64 mi13:27:142:28:277:5825:01
8:03
#13014
20M
20.00 mi13:38:002:39:137:5810:46
7:55
#12707
21M
21.00 mi13:46:262:47:397:598:26
8:26
#12514
35K
21.75 mi13:52:172:53:307:595:51
7:49
#12447
23M
23.00 mi14:02:323:03:457:5910:15
8:11
#12357
24M
24.00 mi14:10:103:11:237:587:38
7:38
#12203
40K
24.85 mi14:16:463:17:597:586:36
7:43
#12010
25.2M
25.20 mi14:19:313:20:447:582:45
7:58
#11902
Finish
26.22 mi14:26:473:28:007:567:16
7:08
#11615
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi133379684968413833(Top 52%)9826(Top 65%)9826(Top 885%)
10K6.21 mi3.10 mi13435-989718-349718-3413577(Top 51%)9778(Top 64%)9778(Top 881%)
15K9.32 mi3.11 mi13570-1359752-349752-3413833(Top 52%)9826(Top 65%)9826(Top 885%)
20K12.43 mi3.11 mi13592-229736+169736+1613789(Top 52%)9783(Top 64%)9783(Top 881%)
Half13.11 mi0.68 mi13584+89736973613441(Top 50%)9646(Top 64%)9646(Top 869%)
25K15.53 mi2.42 mi13428+1569650+869650+8612797(Top 48%)9256(Top 61%)9256(Top 834%)
30K18.64 mi3.11 mi13014+4149442+2089442+20811308(Top 42%)8502(Top 56%)8502(Top 766%)
20M20.00 mi1.36 mi12707+3079286+1569286+1569724(Top 37%)7599(Top 50%)7599(Top 685%)
21M21.00 mi1.00 mi12514+1939188+989188+9810067(Top 38%)7646(Top 50%)7646(Top 689%)
35K21.75 mi0.75 mi12447+679146+429146+4210783(Top 41%)8006(Top 53%)8006(Top 721%)
23M23.00 mi1.25 mi12357+909084+629084+6211087(Top 42%)8018(Top 53%)8018(Top 722%)
24M24.00 mi1.00 mi12203+1548995+898995+898631(Top 32%)6698(Top 44%)6698(Top 603%)
40K24.85 mi0.85 mi12010+1938886+1098886+1098105(Top 30%)6324(Top 42%)6324(Top 570%)
25.2M25.20 mi0.35 mi11902+1088838+488838+486370(Top 24%)5206(Top 34%)5206(Top 469%)
Finish26.22 mi1.02 mi11615+2878683+1558683+1556006(Top 23%)4945(Top 33%)4945(Top 445%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13833

Males

9826

M60-64

9826

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13577

Males

9778

M60-64

9778

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13833

Males

9826

M60-64

9826

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13789

Males

9783

M60-64

9783

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13441

Males

9646

M60-64

9646

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12797

Males

9256

M60-64

9256

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11308

Males

8502

M60-64

8502

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9724

Males

7599

M60-64

7599

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10067

Males

7646

M60-64

7646

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10783

Males

8006

M60-64

8006

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11087

Males

8018

M60-64

8018

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8631

Males

6698

M60-64

6698

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8105

Males

6324

M60-64

6324

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6370

Males

5206

M60-64

5206

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6006

Males

4945

M60-64

4945

Passing Analysis

Category:
Athletes Passed
2758
Passed By
1036
Net Change
+1722
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13337
5K → 10K258356-98#13337#13435
10K → 15K150285-135#13435#13570
15K → 20K179201-22#13570#13592
20K → Half3830+8#13592#13584
Half → 25K20650+156#13584#13428
25K → 30K44430+414#13428#13014
30K → 20M3103+307#13014#12707
20M → 21M21118+193#12707#12514
21M → 35K8013+67#12514#12447
35K → 23M13141+90#12447#12357
23M → 24M1584+154#12357#12203
24M → 40K1974+193#12203#12010
40K → 25.2M1080+108#12010#11902
25.2M → Finish2881+287#11902#11615
TOTALS27581036+1722
📊

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