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BOSTON MARATHON 2023

David Browne

Bib: 2849•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:01
Rank: #950
Start → 5K
19:01 | 6:07/mi
10K· 6.21 mi
37:45
Rank: #903 (+47)
5K → 10K
18:44 | 6:02/mi
15K· 9.32 mi
56:37
Rank: #882 (+21)
10K → 15K
18:52 | 6:04/mi
20K· 12.43 mi
1:17:10
Rank: #1182 (-300)
15K → 20K
20:33 | 6:37/mi
Half· 13.11 mi
1:21:17
Rank: #1158 (+24)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:36:15
Rank: #1119 (+39)
Half → 25K
14:58 | 6:10/mi
30K· 18.64 mi
1:57:12
Rank: #1296 (-177)
25K → 30K
20:57 | 6:45/mi
20M
2:05:48
Rank: #1250 (+46)
30K → 20M
8:36 | 6:20/mi
21M
2:12:39
Rank: #1254 (-4)
20M → 21M
6:51 | 6:51/mi
35K· 21.75 mi
2:17:19
Rank: #1241 (+13)
21M → 35K
4:40 | 6:14/mi
23M
2:25:16
Rank: #1200 (+41)
35K → 23M
7:57 | 6:21/mi
24M
2:31:36
Rank: #1192 (+8)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:36:40
Rank: #1138 (+54)
24M → 40K
5:04 | 5:56/mi
25.2M
2:39:03
Rank: #1133 (+5)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:47:07
Rank: #1351 (-218)
25.2M → Finish
8:04 | 7:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:17
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:25:50
Pace6:33 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3819:016:0719:01
6:07
-
10K
6.21 mi10:38:2237:456:0518:44
6:02
-0:05
15K
9.32 mi10:57:1456:376:0418:52
6:04
+0:02
20K
12.43 mi11:17:471:17:106:1320:33
6:37
+0:33
Half
13.11 mi11:21:541:21:176:124:07
6:02
-0:35
25K
15.53 mi11:36:521:36:156:1214:58
6:10
+0:08
30K
18.64 mi11:57:491:57:126:1720:57
6:45
+0:35
20M
20.00 mi12:06:252:05:486:178:36
6:20
-0:25
21M
21.00 mi12:13:162:12:396:196:51
6:51
+0:31
35K
21.75 mi12:17:562:17:196:194:40
6:14
-0:37
23M
23.00 mi12:25:532:25:166:197:57
6:21
+0:07
24M
24.00 mi12:32:132:31:366:196:20
6:20
-0:01
40K
24.85 mi12:37:172:36:406:185:04
5:56
-0:24
25.2M
25.20 mi12:39:402:39:036:192:23
6:55
+0:59
Finish
26.22 mi12:47:442:47:076:238:04
7:55
+1:00

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

5:56 /mi

Average Pace

6:23 /mi

Slowest Pace

7:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:47

28% of race

Time at Steady Pace

1:01:32

37% of race

Time at Slower Pace

58:48

35% of race

Average Pace: 6:22 /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 mi10:19:3819:016:0719:01
6:07
#950
10K
6.21 mi10:38:2237:456:0518:44
6:02
#903
15K
9.32 mi10:57:1456:376:0418:52
6:04
#882
20K
12.43 mi11:17:471:17:106:1320:33
6:37
#1182
Half
13.11 mi11:21:541:21:176:124:07
6:02
#1158
25K
15.53 mi11:36:521:36:156:1214:58
6:10
#1119
30K
18.64 mi11:57:491:57:126:1720:57
6:45
#1296
20M
20.00 mi12:06:252:05:486:178:36
6:20
#1250
21M
21.00 mi12:13:162:12:396:196:51
6:51
#1254
35K
21.75 mi12:17:562:17:196:194:40
6:14
#1241
23M
23.00 mi12:25:532:25:166:197:57
6:21
#1200
24M
24.00 mi12:32:132:31:366:196:20
6:20
#1192
40K
24.85 mi12:37:172:36:406:185:04
5:56
#1138
25.2M
25.20 mi12:39:402:39:036:192:23
6:55
#1133
Finish
26.22 mi12:47:442:47:076:238:04
7:55
#1351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi950894894896(Top 3%)848(Top 6%)848(Top 16%)
10K6.21 mi3.10 mi903+47852+42852+42890(Top 3%)841(Top 6%)841(Top 16%)
15K9.32 mi3.11 mi882+21832+20832+20896(Top 3%)848(Top 6%)848(Top 16%)
20K12.43 mi3.11 mi1182-3001125-2931125-2932965(Top 11%)2824(Top 19%)2824(Top 53%)
Half13.11 mi0.68 mi1158+241102+231102+23881(Top 3%)838(Top 6%)838(Top 16%)
25K15.53 mi2.42 mi1119+391064+381064+38933(Top 4%)885(Top 6%)885(Top 17%)
30K18.64 mi3.11 mi1296-1771238-1741238-1742663(Top 10%)2527(Top 17%)2527(Top 48%)
20M20.00 mi1.36 mi1250+461194+441194+44952(Top 4%)909(Top 6%)909(Top 17%)
21M21.00 mi1.00 mi1254-41198-41198-41611(Top 6%)1532(Top 10%)1532(Top 29%)
35K21.75 mi0.75 mi1241+131185+131185+131401(Top 5%)1327(Top 9%)1327(Top 25%)
23M23.00 mi1.25 mi1200+411146+391146+39976(Top 4%)926(Top 6%)926(Top 18%)
24M24.00 mi1.00 mi1192+81138+81138+81475(Top 6%)1394(Top 9%)1394(Top 26%)
40K24.85 mi0.85 mi1138+541084+541084+54267(Top 1%)244(Top 2%)244(Top 5%)
25.2M25.20 mi0.35 mi1133+51079+51079+51546(Top 6%)1452(Top 10%)1452(Top 27%)
Finish26.22 mi1.02 mi1351-2181287-2081287-20811564(Top 43%)8057(Top 53%)8057(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

896

Males

848

M18-39

848

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

890

Males

841

M18-39

841

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

896

Males

848

M18-39

848

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2965

Males

2824

M18-39

2824

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

881

Males

838

M18-39

838

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

933

Males

885

M18-39

885

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2663

Males

2527

M18-39

2527

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

952

Males

909

M18-39

909

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1611

Males

1532

M18-39

1532

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1401

Males

1327

M18-39

1327

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

976

Males

926

M18-39

926

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1475

Males

1394

M18-39

1394

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

267

Males

244

M18-39

244

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1546

Males

1452

M18-39

1452

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11564

Males

8057

M18-39

8057

Passing Analysis

Category:
Athletes Passed
414
Passed By
815
Net Change
-401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#950
5K → 10K7427+47#950#903
10K → 15K3413+21#903#882
15K → 20K0300-300#882#1182
20K → Half240+24#1182#1158
Half → 25K489+39#1158#1119
25K → 30K9186-177#1119#1296
30K → 20M548+46#1296#1250
20M → 21M2024-4#1250#1254
21M → 35K2310+13#1254#1241
35K → 23M487+41#1241#1200
23M → 24M179+8#1200#1192
24M → 40K540+54#1192#1138
40K → 25.2M94+5#1138#1133
25.2M → Finish0218-218#1133#1351
TOTALS414815-401
📊

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