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BOSTON MARATHON 2023

Jamie Brown

Bib: 15083•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Masters (Masters Women)
#0 / 6539
Top 4%
Division (F45-49)
#0 / 1817
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:20
Rank: #9721
Start → 5K
23:20 | 7:31/mi
10K· 6.21 mi
46:20
Rank: #9633 (+88)
5K → 10K
23:00 | 7:24/mi
15K· 9.32 mi
1:09:00
Rank: #9208 (+425)
10K → 15K
22:40 | 7:18/mi
20K· 12.43 mi
1:32:02
Rank: #9047 (+161)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:37:02
Rank: #9035 (+12)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:55:58
Rank: #9354 (-319)
Half → 25K
18:56 | 7:49/mi
30K· 18.64 mi
2:19:37
Rank: #9085 (+269)
25K → 30K
23:39 | 7:37/mi
20M
2:29:43
Rank: #8837 (+248)
30K → 20M
10:06 | 7:26/mi
21M
2:37:28
Rank: #8630 (+207)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:42:51
Rank: #8537 (+93)
21M → 35K
5:23 | 7:12/mi
23M
2:52:07
Rank: #8342 (+195)
35K → 23M
9:16 | 7:24/mi
24M
2:59:15
Rank: #8157 (+185)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
3:05:28
Rank: #7997 (+160)
24M → 40K
6:13 | 7:16/mi
25.2M
3:08:08
Rank: #7947 (+50)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:15:11
Rank: #7788 (+159)
25.2M → Finish
7:03 | 6:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:02
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:38:09
Pace7:29 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2623:207:3123:20
7:31
-
10K
6.21 mi11:16:2646:207:2723:00
7:24
-0:07
15K
9.32 mi11:39:061:09:007:2422:40
7:18
-0:06
20K
12.43 mi12:02:081:32:027:2423:02
7:25
+0:07
Half
13.11 mi12:07:081:37:027:245:00
7:20
-0:05
25K
15.53 mi12:26:041:55:587:2818:56
7:49
+0:29
30K
18.64 mi12:49:432:19:377:2923:39
7:37
-0:12
20M
20.00 mi12:59:492:29:437:2910:06
7:26
-0:11
21M
21.00 mi13:07:342:37:287:307:45
7:45
+0:19
35K
21.75 mi13:12:572:42:517:295:23
7:12
-0:33
23M
23.00 mi13:22:132:52:077:299:16
7:24
+0:12
24M
24.00 mi13:29:212:59:157:287:08
7:08
-0:16
40K
24.85 mi13:35:343:05:287:286:13
7:16
+0:08
25.2M
25.20 mi13:38:143:08:087:282:40
7:44
+0:28
Finish
26.22 mi13:45:173:15:117:277:03
6:55
-0:49

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

6:55 /mi

Average Pace

7:27 /mi

Slowest Pace

7:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:11

73% of race

Time at Steady Pace

53:00

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:53:2623:207:3123:20
7:31
#9721
10K
6.21 mi11:16:2646:207:2723:00
7:24
#9633
15K
9.32 mi11:39:061:09:007:2422:40
7:18
#9208
20K
12.43 mi12:02:081:32:027:2423:02
7:25
#9047
Half
13.11 mi12:07:081:37:027:245:00
7:20
#9035
25K
15.53 mi12:26:041:55:587:2818:56
7:49
#9354
30K
18.64 mi12:49:432:19:377:2923:39
7:37
#9085
20M
20.00 mi12:59:492:29:437:2910:06
7:26
#8837
21M
21.00 mi13:07:342:37:287:307:45
7:45
#8630
35K
21.75 mi13:12:572:42:517:295:23
7:12
#8537
23M
23.00 mi13:22:132:52:077:299:16
7:24
#8342
24M
24.00 mi13:29:212:59:157:287:08
7:08
#8157
40K
24.85 mi13:35:343:05:287:286:13
7:16
#7997
25.2M
25.20 mi13:38:143:08:087:282:40
7:44
#7947
Finish
26.22 mi13:45:173:15:117:277:03
6:55
#7788
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi9721171517158526(Top 32%)1257(Top 11%)1257(Top 69%)
10K6.21 mi3.10 mi9633+881673+421673+429661(Top 36%)1679(Top 15%)1679(Top 92%)
15K9.32 mi3.11 mi9208+4251504+1691504+1698526(Top 32%)1257(Top 11%)1257(Top 69%)
20K12.43 mi3.11 mi9047+1611458+461458+468627(Top 32%)1341(Top 12%)1341(Top 74%)
Half13.11 mi0.68 mi9035+121459-11459-18858(Top 33%)1408(Top 12%)1408(Top 77%)
25K15.53 mi2.42 mi9354-3191584-1251584-12511159(Top 42%)2561(Top 22%)2561(Top 141%)
30K18.64 mi3.11 mi9085+2691517+671517+678024(Top 30%)1318(Top 12%)1318(Top 73%)
20M20.00 mi1.36 mi8837+2481438+791438+796389(Top 24%)819(Top 7%)819(Top 45%)
21M21.00 mi1.00 mi8630+2071383+551383+555940(Top 22%)789(Top 7%)789(Top 43%)
35K21.75 mi0.75 mi8537+931363+201363+206547(Top 25%)940(Top 8%)940(Top 52%)
23M23.00 mi1.25 mi8342+1951309+541309+545896(Top 22%)784(Top 7%)784(Top 43%)
24M24.00 mi1.00 mi8157+1851263+461263+465416(Top 20%)696(Top 6%)696(Top 38%)
40K24.85 mi0.85 mi7997+1601221+421221+425299(Top 20%)758(Top 7%)758(Top 42%)
25.2M25.20 mi0.35 mi7947+501211+101211+105136(Top 19%)781(Top 7%)781(Top 43%)
Finish26.22 mi1.02 mi7788+1591173+381173+384775(Top 18%)660(Top 6%)660(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8526

Females

1257

F45-49

1257

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

9661

Females

1679

F45-49

1679

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8526

Females

1257

F45-49

1257

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8627

Females

1341

F45-49

1341

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8858

Females

1408

F45-49

1408

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11159

Females

2561

F45-49

2561

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8024

Females

1318

F45-49

1318

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6389

Females

819

F45-49

819

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5940

Females

789

F45-49

789

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6547

Females

940

F45-49

940

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5896

Females

784

F45-49

784

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5416

Females

696

F45-49

696

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5299

Females

758

F45-49

758

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5136

Females

781

F45-49

781

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4775

Females

660

F45-49

660

Passing Analysis

Category:
Athletes Passed
2734*
Passed By
801
Net Change
+1933
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9721
5K → 10K350262+88#9721#9633
10K → 15K44621+425#9633#9208
15K → 20K21453+161#9208#9047
20K → Half3119+12#9047#9035
Half → 25K45364-319#9035#9354
25K → 30K309*40+269#9354#9085
30K → 20M2568+248#9085#8837
20M → 21M2103+207#8837#8630
21M → 35K996+93#8630#8537
35K → 23M2027+195#8537#8342
23M → 24M1861+185#8342#8157
24M → 40K1655+160#8157#7997
40K → 25.2M566+50#7997#7947
25.2M → Finish1656+159#7947#7788
TOTALS2734*801+1933

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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