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BOSTON MARATHON 2023

Yolande Willemse

Bib: 18494•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F40-44)
#0 / 1878
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:57/mi
24:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
48:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:12:49
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:37:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:42:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
2:01:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:25:43
↑ 181↓ 1480.2%
20M
7:27/mi
2:35:51
↑ 64↓ 500.2%
21M
7:58/mi
2:43:49
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:49:11
↑ 17↓ 861.7%
23M
7:27/mi
2:58:31
↑ 23↓ 630.6%
24M
7:08/mi
3:05:39
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:12:07
↓ 200.3%
25.2M
8:01/mi
3:14:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:22:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:38
Pace7:50 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:41
Pace7:36 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4024:437:5724:43
7:57
-
10K
6.21 mi11:44:3148:347:4923:51
7:41
-0:16
15K
9.32 mi12:08:461:12:497:4924:15
7:48
+0:07
20K
12.43 mi12:33:201:37:237:5024:34
7:54
+0:06
Half
13.11 mi12:38:351:42:387:505:15
7:42
-0:12
25K
15.53 mi12:57:202:01:237:4918:45
7:44
+0:02
30K
18.64 mi13:21:402:25:437:4924:20
7:50
+0:06
20M
20.00 mi13:31:482:35:517:4810:08
7:27
-0:23
21M
21.00 mi13:39:462:43:497:487:58
7:58
+0:31
35K
21.75 mi13:45:082:49:117:475:22
7:10
-0:48
23M
23.00 mi13:54:282:58:317:469:20
7:27
+0:17
24M
24.00 mi14:01:363:05:397:447:08
7:08
-0:19
40K
24.85 mi14:08:043:12:077:446:28
7:34
+0:26
25.2M
25.20 mi14:10:503:14:537:442:46
8:01
+0:27
Finish
26.22 mi14:18:163:22:197:437:26
7:18
-0:43

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

7:08 /mi

Average Pace

7:43 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:18

70% of race

Time at Steady Pace

1:00:01

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:43 /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 mi11:20:4024:437:5724:43
7:57
#13689
10K
6.21 mi11:44:3148:347:4923:51
7:41
#12852
15K
9.32 mi12:08:461:12:497:4924:15
7:48
#12799
20K
12.43 mi12:33:201:37:237:5024:34
7:54
#12730
Half
13.11 mi12:38:351:42:387:505:15
7:42
#12663
25K
15.53 mi12:57:202:01:237:4918:45
7:44
#12298
30K
18.64 mi13:21:402:25:437:4924:20
7:50
#11756
20M
20.00 mi13:31:482:35:517:4810:08
7:27
#11298
21M
21.00 mi13:39:462:43:497:487:58
7:58
#11011
35K
21.75 mi13:45:082:49:117:475:22
7:10
#10807
23M
23.00 mi13:54:282:58:317:469:20
7:27
#10493
24M
24.00 mi14:01:363:05:397:447:08
7:08
#10228
40K
24.85 mi14:08:043:12:077:446:28
7:34
#10070
25.2M
25.20 mi14:10:503:14:537:442:46
8:01
#9994
Finish
26.22 mi14:18:163:22:197:437:26
7:18
#9834
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi136893831383112771(Top 48%)3327(Top 29%)3327(Top 177%)
10K6.21 mi3.10 mi12852+8373344+4873344+48712032(Top 45%)2889(Top 25%)2889(Top 154%)
15K9.32 mi3.11 mi12799+533334+103334+1012771(Top 48%)3327(Top 29%)3327(Top 177%)
20K12.43 mi3.11 mi12730+693320+143320+1412684(Top 48%)3368(Top 29%)3368(Top 179%)
Half13.11 mi0.68 mi12663+673294+263294+2611852(Top 45%)2804(Top 25%)2804(Top 149%)
25K15.53 mi2.42 mi12298+3653112+1823112+18210568(Top 40%)2263(Top 20%)2263(Top 121%)
30K18.64 mi3.11 mi11756+5422836+2762836+2769615(Top 36%)1980(Top 17%)1980(Top 105%)
20M20.00 mi1.36 mi11298+4582600+2362600+2366546(Top 25%)871(Top 8%)871(Top 46%)
21M21.00 mi1.00 mi11011+2872464+1362464+1367184(Top 27%)1209(Top 11%)1209(Top 64%)
35K21.75 mi0.75 mi10807+2042377+872377+876431(Top 24%)910(Top 8%)910(Top 48%)
23M23.00 mi1.25 mi10493+3142243+1342243+1346206(Top 23%)892(Top 8%)892(Top 47%)
24M24.00 mi1.00 mi10228+2652137+1062137+1065425(Top 20%)705(Top 6%)705(Top 38%)
40K24.85 mi0.85 mi10070+1582092+452092+457147(Top 27%)1434(Top 13%)1434(Top 76%)
25.2M25.20 mi0.35 mi9994+762075+172075+176755(Top 25%)1341(Top 12%)1341(Top 71%)
Finish26.22 mi1.02 mi9834+1602020+552020+557140(Top 27%)1487(Top 13%)1487(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12771

Females

3327

F40-44

3327

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12032

Females

2889

F40-44

2889

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12771

Females

3327

F40-44

3327

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12684

Females

3368

F40-44

3368

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

11852

Females

2804

F40-44

2804

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10568

Females

2263

F40-44

2263

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9615

Females

1980

F40-44

1980

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6546

Females

871

F40-44

871

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7184

Females

1209

F40-44

1209

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6431

Females

910

F40-44

910

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6206

Females

892

F40-44

892

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5425

Females

705

F40-44

705

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7147

Females

1434

F40-44

1434

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6755

Females

1341

F40-44

1341

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7140

Females

1487

F40-44

1487

Passing Analysis

Category:
Athletes Passed
4319*
Passed By
464
Net Change
+3855
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13689
5K → 10K90669+837#13689#12852
10K → 15K227174+53#12852#12799
15K → 20K222153+69#12799#12730
20K → Half758+67#12730#12663
Half → 25K37611+365#12663#12298
25K → 30K55715+542#12298#11756
30K → 20M4580+458#11756#11298
20M → 21M2881+287#11298#11011
21M → 35K2040+204#11011#10807
35K → 23M3151+314#10807#10493
23M → 24M2661+265#10493#10228
24M → 40K1668+158#10228#10070
40K → 25.2M82*6+76#10070#9994
25.2M → Finish177*17+160#9994#9834
TOTALS4319*464+3855

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

📊

Passing Visuals

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