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BOSTON MARATHON 2023

Jeremy Brown

Bib: 9701•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M45-49)
#0 / 2252
Top 12%
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
21:06
Rank: #4589
Start → 5K
21:06 | 6:47/mi
10K· 6.21 mi
41:44
Rank: #4147 (+442)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:02:37
Rank: #4190 (-43)
10K → 15K
20:53 | 6:43/mi
20K· 12.43 mi
1:24:05
Rank: #4510 (-320)
15K → 20K
21:28 | 6:55/mi
Half· 13.11 mi
1:28:33
Rank: #4409 (+101)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:44:44
Rank: #4147 (+262)
Half → 25K
16:11 | 6:40/mi
30K· 18.64 mi
2:06:00
Rank: #3946 (+201)
25K → 30K
21:16 | 6:51/mi
20M
2:15:35
Rank: #3961 (-15)
30K → 20M
9:35 | 7:03/mi
21M
2:23:14
Rank: #4059 (-98)
20M → 21M
7:39 | 7:39/mi
35K· 21.75 mi
2:28:27
Rank: #4106 (-47)
21M → 35K
5:13 | 6:58/mi
23M
2:37:10
Rank: #4049 (+57)
35K → 23M
8:43 | 6:58/mi
24M
2:43:42
Rank: #3921 (+128)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:49:22
Rank: #3788 (+133)
24M → 40K
5:40 | 6:38/mi
25.2M
2:51:53
Rank: #3766 (+22)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:58:32
Rank: #3672 (+94)
25.2M → Finish
6:39 | 6:32/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:33
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:29:59
Pace6:52 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3621:066:4721:06
6:47
-
10K
6.21 mi11:07:1441:446:4320:38
6:38
-0:09
15K
9.32 mi11:28:071:02:376:4320:53
6:43
+0:05
20K
12.43 mi11:49:351:24:056:4621:28
6:55
+0:12
Half
13.11 mi11:54:031:28:336:454:28
6:33
-0:22
25K
15.53 mi12:10:141:44:446:4516:11
6:40
+0:07
30K
18.64 mi12:31:302:06:006:4621:16
6:51
+0:11
20M
20.00 mi12:41:052:15:356:479:35
7:03
+0:12
21M
21.00 mi12:48:442:23:146:497:39
7:39
+0:36
35K
21.75 mi12:53:572:28:276:505:13
6:58
-0:41
23M
23.00 mi13:02:402:37:106:508:43
6:58
0:00
24M
24.00 mi13:09:122:43:426:496:32
6:32
-0:26
40K
24.85 mi13:14:522:49:226:495:40
6:38
+0:06
25.2M
25.20 mi13:17:232:51:536:492:31
7:18
+0:40
Finish
26.22 mi13:24:022:58:326:496:39
6:32
-0:46

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

6:32 /mi

Average Pace

6:49 /mi

Slowest Pace

7:39 /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

2:48:22

94% of race

Time at Steady Pace

10:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:46:3621:066:4721:06
6:47
#4589
10K
6.21 mi11:07:1441:446:4320:38
6:38
#4147
15K
9.32 mi11:28:071:02:376:4320:53
6:43
#4190
20K
12.43 mi11:49:351:24:056:4621:28
6:55
#4510
Half
13.11 mi11:54:031:28:336:454:28
6:33
#4409
25K
15.53 mi12:10:141:44:446:4516:11
6:40
#4147
30K
18.64 mi12:31:302:06:006:4621:16
6:51
#3946
20M
20.00 mi12:41:052:15:356:479:35
7:03
#3961
21M
21.00 mi12:48:442:23:146:497:39
7:39
#4059
35K
21.75 mi12:53:572:28:276:505:13
6:58
#4106
23M
23.00 mi13:02:402:37:106:508:43
6:58
#4049
24M
24.00 mi13:09:122:43:426:496:32
6:32
#3921
40K
24.85 mi13:14:522:49:226:495:40
6:38
#3788
25.2M
25.20 mi13:17:232:51:536:492:31
7:18
#3766
Finish
26.22 mi13:24:022:58:326:496:39
6:32
#3672
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4589427742774330(Top 16%)4055(Top 27%)4055(Top 180%)
10K6.21 mi3.10 mi4147+4423893+3843893+3843809(Top 14%)3593(Top 24%)3593(Top 160%)
15K9.32 mi3.11 mi4190-433929-363929-364330(Top 16%)4055(Top 27%)4055(Top 180%)
20K12.43 mi3.11 mi4510-3204212-2834212-2835398(Top 20%)4981(Top 33%)4981(Top 221%)
Half13.11 mi0.68 mi4409+1014126+864126+863098(Top 12%)2963(Top 20%)2963(Top 132%)
25K15.53 mi2.42 mi4147+2623888+2383888+2383191(Top 12%)3043(Top 20%)3043(Top 135%)
30K18.64 mi3.11 mi3946+2013717+1713717+1713296(Top 12%)3106(Top 20%)3106(Top 138%)
20M20.00 mi1.36 mi3961-153726-93726-94315(Top 16%)3975(Top 26%)3975(Top 177%)
21M21.00 mi1.00 mi4059-983806-803806-805326(Top 20%)4698(Top 31%)4698(Top 209%)
35K21.75 mi0.75 mi4106-473846-403846-405140(Top 19%)4591(Top 30%)4591(Top 204%)
23M23.00 mi1.25 mi4049+573795+513795+513579(Top 13%)3318(Top 22%)3318(Top 147%)
24M24.00 mi1.00 mi3921+1283677+1183677+1182252(Top 8%)2110(Top 14%)2110(Top 94%)
40K24.85 mi0.85 mi3788+1333559+1183559+1182050(Top 8%)1920(Top 13%)1920(Top 85%)
25.2M25.20 mi0.35 mi3766+223539+203539+202950(Top 11%)2705(Top 18%)2705(Top 120%)
Finish26.22 mi1.02 mi3672+943453+863453+862620(Top 10%)2406(Top 16%)2406(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4330

Males

4055

M45-49

4055

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3809

Males

3593

M45-49

3593

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4330

Males

4055

M45-49

4055

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5398

Males

4981

M45-49

4981

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3098

Males

2963

M45-49

2963

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3191

Males

3043

M45-49

3043

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3296

Males

3106

M45-49

3106

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4315

Males

3975

M45-49

3975

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5326

Males

4698

M45-49

4698

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5140

Males

4591

M45-49

4591

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3579

Males

3318

M45-49

3318

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2252

Males

2110

M45-49

2110

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2050

Males

1920

M45-49

1920

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2950

Males

2705

M45-49

2705

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2620

Males

2406

M45-49

2406

Passing Analysis

Category:
Athletes Passed
1859
Passed By
942
Net Change
+917
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4589
5K → 10K50260+442#4589#4147
10K → 15K113156-43#4147#4190
15K → 20K26346-320#4190#4510
20K → Half1010+101#4510#4409
Half → 25K2686+262#4409#4147
25K → 30K22423+201#4147#3946
30K → 20M6176-15#3946#3961
20M → 21M42140-98#3961#4059
21M → 35K1966-47#4059#4106
35K → 23M8831+57#4106#4049
23M → 24M1357+128#4049#3921
24M → 40K1363+133#3921#3788
40K → 25.2M3412+22#3788#3766
25.2M → Finish11016+94#3766#3672
TOTALS1859942+917
📊

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