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BOSTON MARATHON 2023

Brittany Desimone

Bib: 14151•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Masters (Masters Women)
#0 / 6539
Top 10%
Division (F40-44)
#0 / 1878
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:53
Rank: #11346
Start → 5K
23:53 | 7:41/mi
10K· 6.21 mi
47:15
Rank: #10961 (+385)
5K → 10K
23:22 | 7:31/mi
15K· 9.32 mi
1:10:33
Rank: #10662 (+299)
10K → 15K
23:18 | 7:30/mi
20K· 12.43 mi
1:34:14
Rank: #10552 (+110)
15K → 20K
23:41 | 7:37/mi
Half· 13.11 mi
1:39:22
Rank: #10539 (+13)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:58:14
Rank: #10580 (-41)
Half → 25K
18:52 | 7:47/mi
30K· 18.64 mi
2:23:12
Rank: #10616 (-36)
25K → 30K
24:58 | 8:02/mi
20M
2:34:11
Rank: #10627 (-11)
30K → 20M
10:59 | 8:05/mi
21M
2:42:43
Rank: #10607 (+20)
20M → 21M
8:32 | 8:32/mi
35K· 21.75 mi
2:48:37
Rank: #10603 (+4)
21M → 35K
5:54 | 7:53/mi
23M
2:59:06
Rank: #10697 (-94)
35K → 23M
10:29 | 8:22/mi
24M
3:07:26
Rank: #10817 (-120)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:14:38
Rank: #10885 (-68)
24M → 40K
7:12 | 8:25/mi
25.2M
3:17:41
Rank: #10894 (-9)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:25:47
Rank: #10912 (-18)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:22
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:46:25
Pace8:07 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0723:537:4123:53
7:41
-
10K
6.21 mi11:16:2947:157:3623:22
7:31
-0:10
15K
9.32 mi11:39:471:10:337:3423:18
7:30
-0:01
20K
12.43 mi12:03:281:34:147:3523:41
7:37
+0:07
Half
13.11 mi12:08:361:39:227:355:08
7:31
-0:06
25K
15.53 mi12:27:281:58:147:3718:52
7:47
+0:16
30K
18.64 mi12:52:262:23:127:4124:58
8:02
+0:15
20M
20.00 mi13:03:252:34:117:4310:59
8:05
+0:03
21M
21.00 mi13:11:572:42:437:458:32
8:32
+0:27
35K
21.75 mi13:17:512:48:377:455:54
7:53
-0:39
23M
23.00 mi13:28:202:59:067:4710:29
8:22
+0:29
24M
24.00 mi13:36:403:07:267:498:20
8:20
-0:02
40K
24.85 mi13:43:523:14:387:507:12
8:25
+0:05
25.2M
25.20 mi13:46:553:17:417:513:03
8:51
+0:26
Finish
26.22 mi13:55:013:25:477:518:06
7:57
-0:54

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

7:30 /mi

Average Pace

7:51 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:11

82% of race

Time at Steady Pace

34:33

17% of race

Time at Slower Pace

3:03

1% of race

Average Pace: 7:51 /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 mi10:53:0723:537:4123:53
7:41
#11346
10K
6.21 mi11:16:2947:157:3623:22
7:31
#10961
15K
9.32 mi11:39:471:10:337:3423:18
7:30
#10662
20K
12.43 mi12:03:281:34:147:3523:41
7:37
#10552
Half
13.11 mi12:08:361:39:227:355:08
7:31
#10539
25K
15.53 mi12:27:281:58:147:3718:52
7:47
#10580
30K
18.64 mi12:52:262:23:127:4124:58
8:02
#10616
20M
20.00 mi13:03:252:34:117:4310:59
8:05
#10627
21M
21.00 mi13:11:572:42:437:458:32
8:32
#10607
35K
21.75 mi13:17:512:48:377:455:54
7:53
#10603
23M
23.00 mi13:28:202:59:067:4710:29
8:22
#10697
24M
24.00 mi13:36:403:07:267:498:20
8:20
#10817
40K
24.85 mi13:43:523:14:387:507:12
8:25
#10885
25.2M
25.20 mi13:46:553:17:417:513:03
8:51
#10894
Finish
26.22 mi13:55:013:25:477:518:06
7:57
#10912
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi113462511251110190(Top 38%)1934(Top 17%)1934(Top 103%)
10K6.21 mi3.10 mi10961+3852305+2062305+20610637(Top 40%)2122(Top 19%)2122(Top 113%)
15K9.32 mi3.11 mi10662+2992147+1582147+15810190(Top 38%)1934(Top 17%)1934(Top 103%)
20K12.43 mi3.11 mi10552+1102100+472100+4710279(Top 39%)2040(Top 18%)2040(Top 109%)
Half13.11 mi0.68 mi10539+132087+132087+1310485(Top 39%)2140(Top 19%)2140(Top 114%)
25K15.53 mi2.42 mi10580-412137-502137-5010959(Top 41%)2461(Top 22%)2461(Top 131%)
30K18.64 mi3.11 mi10616-362216-792216-7911197(Top 42%)2737(Top 24%)2737(Top 146%)
20M20.00 mi1.36 mi10627-112243-272243-2710900(Top 41%)2680(Top 23%)2680(Top 143%)
21M21.00 mi1.00 mi10607+202253-102253-1010693(Top 40%)2719(Top 24%)2719(Top 145%)
35K21.75 mi0.75 mi10603+42273-202273-2011320(Top 43%)3027(Top 26%)3027(Top 161%)
23M23.00 mi1.25 mi10697-942356-832356-8312408(Top 47%)3738(Top 33%)3738(Top 199%)
24M24.00 mi1.00 mi10817-1202433-772433-7713434(Top 50%)4344(Top 38%)4344(Top 231%)
40K24.85 mi0.85 mi10885-682497-642497-6412842(Top 48%)4115(Top 36%)4115(Top 219%)
25.2M25.20 mi0.35 mi10894-92513-162513-1611608(Top 44%)3504(Top 31%)3504(Top 187%)
Finish26.22 mi1.02 mi10912-182547-342547-3411746(Top 44%)3566(Top 31%)3566(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10190

Females

1934

F40-44

1934

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10637

Females

2122

F40-44

2122

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10190

Females

1934

F40-44

1934

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10279

Females

2040

F40-44

2040

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10485

Females

2140

F40-44

2140

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10959

Females

2461

F40-44

2461

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11197

Females

2737

F40-44

2737

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

10900

Females

2680

F40-44

2680

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

10693

Females

2719

F40-44

2719

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11320

Females

3027

F40-44

3027

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12408

Females

3738

F40-44

3738

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13434

Females

4344

F40-44

4344

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12842

Females

4115

F40-44

4115

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11608

Females

3504

F40-44

3504

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11746

Females

3566

F40-44

3566

Passing Analysis

Category:
Athletes Passed
1876*
Passed By
1442
Net Change
+434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11346
5K → 10K539154+385#11346#10961
10K → 15K36566+299#10961#10662
15K → 20K218108+110#10662#10552
20K → Half3724+13#10552#10539
Half → 25K115156-41#10539#10580
25K → 30K161197-36#10580#10616
30K → 20M76*87-11#10616#10627
20M → 21M8464+20#10627#10607
21M → 35K5551+4#10607#10603
35K → 23M55149-94#10603#10697
23M → 24M39159-120#10697#10817
24M → 40K44112-68#10817#10885
40K → 25.2M3342-9#10885#10894
25.2M → Finish5573-18#10894#10912
TOTALS1876*1442+434

* 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