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BOSTON MARATHON 2023

Charlotte Walmsley

Bib: 9154•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:53
Rank: #6527
Start → 5K
21:53 | 7:03/mi
10K· 6.21 mi
43:08
Rank: #6144 (+383)
5K → 10K
21:15 | 6:50/mi
15K· 9.32 mi
1:04:25
Rank: #5940 (+204)
10K → 15K
21:17 | 6:51/mi
20K· 12.43 mi
1:25:43
Rank: #5692 (+248)
15K → 20K
21:18 | 6:51/mi
Half· 13.11 mi
1:30:24
Rank: #5695 (-3)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:47:02
Rank: #5517 (+178)
Half → 25K
16:38 | 6:52/mi
30K· 18.64 mi
2:08:37
Rank: #5180 (+337)
25K → 30K
21:35 | 6:57/mi
20M
2:18:06
Rank: #5026 (+154)
30K → 20M
9:29 | 6:59/mi
21M
2:25:29
Rank: #4942 (+84)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:30:40
Rank: #4926 (+16)
21M → 35K
5:11 | 6:56/mi
23M
2:39:35
Rank: #4842 (+84)
35K → 23M
8:55 | 7:07/mi
24M
2:46:27
Rank: #4773 (+69)
23M → 24M
6:52 | 6:52/mi
40K· 24.85 mi
2:52:19
Rank: #4676 (+97)
24M → 40K
5:52 | 6:52/mi
25.2M
2:54:41
Rank: #4599 (+77)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
3:01:40
Rank: #4550 (+49)
25.2M → Finish
6:59 | 6:52/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:30:24
Pace6:54 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:16
Pace6:58 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0421:537:0321:53
7:03
-
10K
6.21 mi11:11:1943:086:5621:15
6:50
-0:13
15K
9.32 mi11:32:361:04:256:5521:17
6:51
+0:01
20K
12.43 mi11:53:541:25:436:5421:18
6:51
0:00
Half
13.11 mi11:58:351:30:246:544:41
6:52
+0:01
25K
15.53 mi12:15:131:47:026:5316:38
6:52
0:00
30K
18.64 mi12:36:482:08:376:5421:35
6:57
+0:05
20M
20.00 mi12:46:172:18:066:549:29
6:59
+0:02
21M
21.00 mi12:53:402:25:296:567:23
7:23
+0:24
35K
21.75 mi12:58:512:30:406:565:11
6:56
-0:27
23M
23.00 mi13:07:462:39:356:568:55
7:07
+0:11
24M
24.00 mi13:14:382:46:276:566:52
6:52
-0:15
40K
24.85 mi13:20:302:52:196:565:52
6:52
0:00
25.2M
25.20 mi13:22:522:54:416:562:22
6:52
0:00
Finish
26.22 mi13:29:513:01:406:566:59
6:52
0:00

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

6:50 /mi

Average Pace

6:56 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:17

96% of race

Time at Steady Pace

7:23

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:56 /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 mi10:50:0421:537:0321:53
7:03
#6527
10K
6.21 mi11:11:1943:086:5621:15
6:50
#6144
15K
9.32 mi11:32:361:04:256:5521:17
6:51
#5940
20K
12.43 mi11:53:541:25:436:5421:18
6:51
#5692
Half
13.11 mi11:58:351:30:246:544:41
6:52
#5695
25K
15.53 mi12:15:131:47:026:5316:38
6:52
#5517
30K
18.64 mi12:36:482:08:376:5421:35
6:57
#5180
20M
20.00 mi12:46:172:18:066:549:29
6:59
#5026
21M
21.00 mi12:53:402:25:296:567:23
7:23
#4942
35K
21.75 mi12:58:512:30:406:565:11
6:56
#4926
23M
23.00 mi13:07:462:39:356:568:55
7:07
#4842
24M
24.00 mi13:14:382:46:276:566:52
6:52
#4773
40K
24.85 mi13:20:302:52:196:565:52
6:52
#4676
25.2M
25.20 mi13:22:522:54:416:562:22
6:52
#4599
Finish
26.22 mi13:29:513:01:406:566:59
6:52
#4550
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi65276116115586(Top 21%)443(Top 4%)443(Top 9%)
10K6.21 mi3.10 mi6144+383539+72539+725670(Top 21%)463(Top 4%)463(Top 9%)
15K9.32 mi3.11 mi5940+204503+36503+365586(Top 21%)443(Top 4%)443(Top 9%)
20K12.43 mi3.11 mi5692+248447+56447+564982(Top 19%)357(Top 3%)357(Top 7%)
Half13.11 mi0.68 mi5695-34474475826(Top 22%)464(Top 4%)464(Top 10%)
25K15.53 mi2.42 mi5517+178421+26421+264685(Top 18%)329(Top 3%)329(Top 7%)
30K18.64 mi3.11 mi5180+337381+40381+404008(Top 15%)262(Top 2%)262(Top 5%)
20M20.00 mi1.36 mi5026+154364+17364+173935(Top 15%)277(Top 2%)277(Top 6%)
21M21.00 mi1.00 mi4942+84356+8356+84085(Top 15%)323(Top 3%)323(Top 7%)
35K21.75 mi0.75 mi4926+163563564977(Top 19%)492(Top 4%)492(Top 10%)
23M23.00 mi1.25 mi4842+84346+10346+104422(Top 17%)392(Top 3%)392(Top 8%)
24M24.00 mi1.00 mi4773+69340+6340+63970(Top 15%)348(Top 3%)348(Top 7%)
40K24.85 mi0.85 mi4676+97333+7333+73070(Top 12%)254(Top 2%)254(Top 5%)
25.2M25.20 mi0.35 mi4599+77321+12321+121264(Top 5%)69(Top 0.6%)69(Top 1%)
Finish26.22 mi1.02 mi4550+49322-1322-14408(Top 17%)564(Top 5%)564(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5586

Females

443

F18-39

443

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5670

Females

463

F18-39

463

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5586

Females

443

F18-39

443

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

4982

Females

357

F18-39

357

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5826

Females

464

F18-39

464

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4685

Females

329

F18-39

329

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4008

Females

262

F18-39

262

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3935

Females

277

F18-39

277

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4085

Females

323

F18-39

323

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

4977

Females

492

F18-39

492

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4422

Females

392

F18-39

392

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3970

Females

348

F18-39

348

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3070

Females

254

F18-39

254

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1264

Females

69

F18-39

69

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4408

Females

564

F18-39

564

Passing Analysis

Category:
Athletes Passed
2271
Passed By
294
Net Change
+1977
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6527
5K → 10K44764+383#6527#6144
10K → 15K25248+204#6144#5940
15K → 20K26416+248#5940#5692
20K → Half1316-3#5692#5695
Half → 25K18911+178#5695#5517
25K → 30K3469+337#5517#5180
30K → 20M16511+154#5180#5026
20M → 21M10824+84#5026#4942
21M → 35K4226+16#4942#4926
35K → 23M11632+84#4926#4842
23M → 24M7910+69#4842#4773
24M → 40K1036+97#4773#4676
40K → 25.2M770+77#4676#4599
25.2M → Finish7021+49#4599#4550
TOTALS2271294+1977
📊

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