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BOSTON MARATHON 2023

Brittany Boisclair

MA

Bib: 25886 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
10:26/mi
32:24
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
10:32/mi
1:05:07
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:16/mi
1:37:00
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:25/mi
2:09:23
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:10/mi
2:16:19
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:34/mi
2:41:55
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:47/mi
3:15:25
↑ 181↓ 1480.2%
138 ft elev
20M
10:45/mi
3:30:02
↑ 64↓ 500.2%
148 ft elev
21M
10:49/mi
3:40:51
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:42/mi
3:48:51
↑ 17↓ 861.7%
156 ft elev
23M
10:32/mi
4:02:02
↑ 23↓ 630.6%
116 ft elev
24M
10:16/mi
4:12:18
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:21/mi
4:21:09
↓ 200.3%
20 ft elev
25.2M
11:27/mi
4:25:06
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:45/mi
4:35:02
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:16:1910:24 /mi⚡ faster
2nd Half
2:18:4310:35 /mi+1.8%
Positive split — 1.8% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1432:2410:2632:24
10:26
-
10K
6.21 mi12:26:571:05:0710:2932:43
10:32
+0:06
15K
9.32 mi12:58:501:37:0010:2431:53
10:16
-0:16
20K
12.43 mi13:31:132:09:2310:2532:23
10:25
+0:09
Half
13.11 mi13:38:092:16:1910:246:56
10:10
-0:15
25K
15.53 mi14:03:452:41:5510:2525:36
10:34
+0:24
30K
18.64 mi14:37:153:15:2510:2933:30
10:47
+0:13
20M
20.00 mi14:51:523:30:0210:3014:37
10:45
-0:02
21M
21.00 mi15:02:413:40:5110:3110:49
10:49
+0:04
35K
21.75 mi15:10:413:48:5110:318:00
10:42
-0:07
23M
23.00 mi15:23:524:02:0210:3113:11
10:32
-0:10
24M
24.00 mi15:34:084:12:1810:3110:16
10:16
-0:16
40K
24.85 mi15:42:594:21:0910:308:51
10:21
+0:05
25.2M
25.20 mi15:46:564:25:0610:313:57
11:27
+1:06
Finish
26.22 mi15:56:524:35:0210:309:56
9:45
-1:42

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

9:45 /mi

Average Pace

10:30 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:09

77% of race

Time at Steady Pace

1:02:53

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:29 /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 mi11:54:1432:2410:2632:24
10:26
#24534
10K
6.21 mi12:26:571:05:0710:2932:43
10:32
#24686
15K
9.32 mi12:58:501:37:0010:2431:53
10:16
#24447
20K
12.43 mi13:31:132:09:2310:2532:23
10:25
#24252
Half
13.11 mi13:38:092:16:1910:246:56
10:10
#24196
25K
15.53 mi14:03:452:41:5510:2525:36
10:34
#24023
30K
18.64 mi14:37:153:15:2510:2933:30
10:47
#23781
20M
20.00 mi14:51:523:30:0210:3014:37
10:45
#23649
21M
21.00 mi15:02:413:40:5110:3110:49
10:49
#23519
35K
21.75 mi15:10:413:48:5110:318:00
10:42
#23489
23M
23.00 mi15:23:524:02:0210:3113:11
10:32
#23391
24M
24.00 mi15:34:084:12:1810:3110:16
10:16
#23323
40K
24.85 mi15:42:594:21:0910:308:51
10:21
#23230
25.2M
25.20 mi15:46:564:25:0610:313:57
11:27
#23198
Finish
26.22 mi15:56:524:35:0210:309:56
9:45
#23121
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi2453410178101782400798929892
10K6.21 mi3.10 mi24686-15210256-7810256-78247241029010290
15K9.32 mi3.11 mi24447+23910131+12510131+1252400798929892
20K12.43 mi3.11 mi24252+19510032+9910032+992369997429742
Half13.11 mi0.68 mi24196+5610002+3010002+302361196859685
25K15.53 mi2.42 mi24023+1739908+949908+942329095519551
30K18.64 mi3.11 mi23781+2429796+1129796+1122276093329332
20M20.00 mi1.36 mi23649+1329738+589738+582227391289128
21M21.00 mi1.00 mi23519+1309673+659673+652043681718171
35K21.75 mi0.75 mi23489+309663+109663+102275094559455
23M23.00 mi1.25 mi23391+989625+389625+382140587458745
24M24.00 mi1.00 mi23323+689595+309595+302150288528852
40K24.85 mi0.85 mi23230+939558+379558+372088985418541
25.2M25.20 mi0.35 mi23198+329547+119547+112150588718871
Finish26.22 mi1.02 mi23121+779513+349513+342099785668566

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

24007

Females

9892

F18-39

9892

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24724

Females

10290

F18-39

10290

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

24007

Females

9892

F18-39

9892

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23699

Females

9742

F18-39

9742

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23611

Females

9685

F18-39

9685

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23290

Females

9551

F18-39

9551

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22760

Females

9332

F18-39

9332

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22273

Females

9128

F18-39

9128

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20436

Females

8171

F18-39

8171

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22750

Females

9455

F18-39

9455

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21405

Females

8745

F18-39

8745

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21502

Females

8852

F18-39

8852

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20889

Females

8541

F18-39

8541

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21505

Females

8871

F18-39

8871

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

20997

Females

8566

F18-39

8566

Passing Analysis

Category:
Athletes Passed
1834
Passed By
421
Net Change
+1413
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24534
5K → 10K126278-152#24534#24686
10K → 15K26627+239#24686#24447
15K → 20K21318+195#24447#24252
20K → Half582+56#24252#24196
Half → 25K19320+173#24196#24023
25K → 30K26220+242#24023#23781
30K → 20M1397+132#23781#23649
20M → 21M1333+130#23649#23519
21M → 35K4111+30#23519#23489
35K → 23M1046+98#23489#23391
23M → 24M7911+68#23391#23323
24M → 40K985+93#23323#23230
40K → 25.2M397+32#23230#23198
25.2M → Finish836+77#23198#23121
TOTALS1834421+1413

Passing Charts

Category:
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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