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BOSTON MARATHON 2023

Daniel Brewer

Bib: 3933•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:38
Rank: #1497
Start → 5K
19:38 | 6:19/mi
10K· 6.21 mi
38:40
Rank: #1258 (+239)
5K → 10K
19:02 | 6:08/mi
15K· 9.32 mi
57:34
Rank: #1141 (+117)
10K → 15K
18:54 | 6:05/mi
20K· 12.43 mi
1:16:37
Rank: #1064 (+77)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:20:46
Rank: #1063 (+1)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:35:43
Rank: #1022 (+41)
Half → 25K
14:57 | 6:10/mi
30K· 18.64 mi
1:55:24
Rank: #993 (+29)
25K → 30K
19:41 | 6:20/mi
20M
2:04:04
Rank: #986 (+7)
30K → 20M
8:40 | 6:23/mi
21M
2:10:54
Rank: #989 (-3)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:15:39
Rank: #1000 (-11)
21M → 35K
4:45 | 6:21/mi
23M
2:23:58
Rank: #1028 (-28)
35K → 23M
8:19 | 6:39/mi
24M
2:30:18
Rank: #1035 (-7)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:35:53
Rank: #1032 (+3)
24M → 40K
5:35 | 6:32/mi
25.2M
2:38:20
Rank: #1045 (-13)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:44:52
Rank: #1071 (-26)
25.2M → Finish
6:32 | 6:25/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:46
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:24:06
Pace6:25 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4019:386:1919:38
6:19
-
10K
6.21 mi10:39:4238:406:1319:02
6:08
-0:11
15K
9.32 mi10:58:3657:346:1118:54
6:05
-0:03
20K
12.43 mi11:17:391:16:376:1019:03
6:08
+0:03
Half
13.11 mi11:21:481:20:466:104:09
6:05
-0:03
25K
15.53 mi11:36:451:35:436:1014:57
6:10
+0:05
30K
18.64 mi11:56:261:55:246:1119:41
6:20
+0:10
20M
20.00 mi12:05:062:04:046:128:40
6:23
+0:03
21M
21.00 mi12:11:562:10:546:146:50
6:50
+0:27
35K
21.75 mi12:16:412:15:396:144:45
6:21
-0:29
23M
23.00 mi12:25:002:23:586:168:19
6:39
+0:18
24M
24.00 mi12:31:202:30:186:166:20
6:20
-0:19
40K
24.85 mi12:36:552:35:536:165:35
6:32
+0:12
25.2M
25.20 mi12:39:222:38:206:172:27
7:06
+0:34
Finish
26.22 mi12:45:542:44:526:186:32
6:25
-0:41

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

6:05 /mi

Average Pace

6:18 /mi

Slowest Pace

7:06 /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

2:35:35

94% of race

Time at Steady Pace

9:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:17 /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 mi10:20:4019:386:1919:38
6:19
#1497
10K
6.21 mi10:39:4238:406:1319:02
6:08
#1258
15K
9.32 mi10:58:3657:346:1118:54
6:05
#1141
20K
12.43 mi11:17:391:16:376:1019:03
6:08
#1064
Half
13.11 mi11:21:481:20:466:104:09
6:05
#1063
25K
15.53 mi11:36:451:35:436:1014:57
6:10
#1022
30K
18.64 mi11:56:261:55:246:1119:41
6:20
#993
20M
20.00 mi12:05:062:04:046:128:40
6:23
#986
21M
21.00 mi12:11:562:10:546:146:50
6:50
#989
35K
21.75 mi12:16:412:15:396:144:45
6:21
#1000
23M
23.00 mi12:25:002:23:586:168:19
6:39
#1028
24M
24.00 mi12:31:202:30:186:166:20
6:20
#1035
40K
24.85 mi12:36:552:35:536:165:35
6:32
#1032
25.2M
25.20 mi12:39:222:38:206:172:27
7:06
#1045
Finish
26.22 mi12:45:542:44:526:186:32
6:25
#1071
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi149714241424923(Top 3%)875(Top 6%)875(Top 17%)
10K6.21 mi3.10 mi1258+2391193+2311193+2311106(Top 4%)1049(Top 7%)1049(Top 20%)
15K9.32 mi3.11 mi1141+1171081+1121081+112923(Top 3%)875(Top 6%)875(Top 17%)
20K12.43 mi3.11 mi1064+771010+711010+71868(Top 3%)823(Top 5%)823(Top 16%)
Half13.11 mi0.68 mi1063+11009+11009+1971(Top 4%)925(Top 6%)925(Top 18%)
25K15.53 mi2.42 mi1022+41971+38971+38911(Top 3%)864(Top 6%)864(Top 16%)
30K18.64 mi3.11 mi993+29943+28943+281016(Top 4%)965(Top 6%)965(Top 18%)
20M20.00 mi1.36 mi986+7936+7936+71062(Top 4%)1017(Top 7%)1017(Top 19%)
21M21.00 mi1.00 mi989-3941-5941-51493(Top 6%)1422(Top 9%)1422(Top 27%)
35K21.75 mi0.75 mi1000-11951-10951-101717(Top 6%)1630(Top 11%)1630(Top 31%)
23M23.00 mi1.25 mi1028-28977-26977-261916(Top 7%)1817(Top 12%)1817(Top 34%)
24M24.00 mi1.00 mi1035-7985-8985-81423(Top 5%)1346(Top 9%)1346(Top 25%)
40K24.85 mi0.85 mi1032+3981+4981+41626(Top 6%)1529(Top 10%)1529(Top 29%)
25.2M25.20 mi0.35 mi1045-13994-13994-132060(Top 8%)1916(Top 13%)1916(Top 36%)
Finish26.22 mi1.02 mi1071-261020-261020-262044(Top 8%)1899(Top 13%)1899(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

923

Males

875

M18-39

875

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1106

Males

1049

M18-39

1049

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

923

Males

875

M18-39

875

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

868

Males

823

M18-39

823

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

971

Males

925

M18-39

925

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

911

Males

864

M18-39

864

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1016

Males

965

M18-39

965

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1062

Males

1017

M18-39

1017

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1493

Males

1422

M18-39

1422

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1717

Males

1630

M18-39

1630

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1916

Males

1817

M18-39

1817

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1423

Males

1346

M18-39

1346

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1626

Males

1529

M18-39

1529

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2060

Males

1916

M18-39

1916

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2044

Males

1899

M18-39

1899

Passing Analysis

Category:
Athletes Passed
648
Passed By
222
Net Change
+426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1497
5K → 10K2478+239#1497#1258
10K → 15K1214+117#1258#1141
15K → 20K792+77#1141#1064
20K → Half54+1#1064#1063
Half → 25K487+41#1063#1022
25K → 30K5122+29#1022#993
30K → 20M2013+7#993#986
20M → 21M1821-3#986#989
21M → 35K516-11#989#1000
35K → 23M1038-28#1000#1028
23M → 24M1219-7#1028#1035
24M → 40K1916+3#1035#1032
40K → 25.2M316-13#1032#1045
25.2M → Finish1036-26#1045#1071
TOTALS648222+426
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing