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BOSTON MARATHON 2023

Yulandi Van Dyk

Bib: 30425•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
9:09/mi
28:26
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
55:22
↑ 79↓ 1380.4%
15K· 9.32 mi
9:36/mi
1:25:12
↑ 67↓ 78
20K· 12.43 mi
10:11/mi
1:56:49
↑ 106↓ 860.1%
Half· 13.11 mi
10:27/mi
2:03:57
↑ 19↓ 370.5%
25K· 15.53 mi
10:59/mi
2:30:35
↑ 66↓ 880.2%
30K· 18.64 mi
12:21/mi
3:08:57
↑ 181↓ 1480.2%
20M
12:39/mi
3:26:09
↑ 64↓ 500.2%
21M
15:14/mi
3:41:23
↑ 106↓ 241.6%
35K· 21.75 mi
12:31/mi
3:50:45
↑ 17↓ 861.7%
23M
14:14/mi
4:08:34
↑ 23↓ 630.6%
24M
13:27/mi
4:22:01
↓ 821.3%
40K· 24.85 mi
16:32/mi
4:36:09
↓ 200.3%
25.2M
18:10/mi
4:42:25
↑ 13↓ 160.2%
Finish· 26.22 mi
15:51/mi
4:58:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:57
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:54:37
Pace13:19 /mi
📊Positive Split: 40.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:5828:269:0928:26
9:09
-
10K
6.21 mi12:13:5455:228:5526:56
8:40
-0:29
15K
9.32 mi12:43:441:25:129:0829:50
9:36
+0:56
20K
12.43 mi13:15:211:56:499:2431:37
10:11
+0:35
Half
13.11 mi13:22:292:03:579:277:08
10:27
+0:16
25K
15.53 mi13:49:072:30:359:4226:38
10:59
+0:32
30K
18.64 mi14:27:293:08:5710:0838:22
12:21
+1:22
20M
20.00 mi14:44:413:26:0910:1817:12
12:39
+0:18
21M
21.00 mi14:59:553:41:2310:3315:14
15:14
+2:35
35K
21.75 mi15:09:173:50:4510:379:22
12:31
-2:43
23M
23.00 mi15:27:064:08:3410:4817:49
14:14
+1:43
24M
24.00 mi15:40:334:22:0110:5513:27
13:27
-0:47
40K
24.85 mi15:54:414:36:0911:0714:08
16:32
+3:05
25.2M
25.20 mi16:00:574:42:2511:126:16
18:10
+1:38
Finish
26.22 mi16:17:064:58:3411:2416:09
15:51
-2:19

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

8:40 /mi

Average Pace

11:24 /mi

Slowest Pace

18:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:35

50% of race

Time at Steady Pace

1:18:23

26% of race

Time at Slower Pace

1:09:36

23% of race

Average Pace: 11:23 /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 mi11:46:5828:269:0928:26
9:09
#21063
10K
6.21 mi12:13:5455:228:5526:56
8:40
#20265
15K
9.32 mi12:43:441:25:129:0829:50
9:36
#21185
20K
12.43 mi13:15:211:56:499:2431:37
10:11
#21807
Half
13.11 mi13:22:292:03:579:277:08
10:27
#21958
25K
15.53 mi13:49:072:30:359:4226:38
10:59
#22458
30K
18.64 mi14:27:293:08:5710:0838:22
12:21
#23124
20M
20.00 mi14:44:413:26:0910:1817:12
12:39
#23301
21M
21.00 mi14:59:553:41:2310:3315:14
15:14
#23568
35K
21.75 mi15:09:173:50:4510:379:22
12:31
#23650
23M
23.00 mi15:27:064:08:3410:4817:49
14:14
#23924
24M
24.00 mi15:40:334:22:0110:5513:27
13:27
#24044
40K
24.85 mi15:54:414:36:0911:0714:08
16:32
#24302
25.2M
25.20 mi16:00:574:42:2511:126:16
18:10
#24425
Finish
26.22 mi16:17:064:58:3411:2416:09
15:51
#24741
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi210638408840822531(Top 85%)9088(Top 80%)9088(Top 500%)
10K6.21 mi3.10 mi20265+7987905+5037905+50319261(Top 72%)7243(Top 63%)7243(Top 399%)
15K9.32 mi3.11 mi21185-9208381-4768381-47622531(Top 85%)9088(Top 80%)9088(Top 500%)
20K12.43 mi3.11 mi21807-6228715-3348715-33423255(Top 87%)9488(Top 83%)9488(Top 522%)
Half13.11 mi0.68 mi21958-1518808-938808-9324157(Top 91%)10009(Top 88%)10009(Top 551%)
25K15.53 mi2.42 mi22458-5009085-2779085-27723958(Top 90%)9932(Top 87%)9932(Top 547%)
30K18.64 mi3.11 mi23124-6669447-3629447-36224864(Top 93%)10492(Top 92%)10492(Top 577%)
20M20.00 mi1.36 mi23301-1779550-1039550-10324887(Top 93%)10544(Top 92%)10544(Top 580%)
21M21.00 mi1.00 mi23568-2679699-1499699-14925862(Top 97%)11030(Top 97%)11030(Top 607%)
35K21.75 mi0.75 mi23650-829751-529751-5225203(Top 95%)10760(Top 94%)10760(Top 592%)
23M23.00 mi1.25 mi23924-2749910-1599910-15925967(Top 98%)11122(Top 97%)11122(Top 612%)
24M24.00 mi1.00 mi24044-1209993-839993-8325775(Top 97%)11060(Top 97%)11060(Top 609%)
40K24.85 mi0.85 mi24302-25810142-14910142-14926490(Top 100%)11374(Top 100%)11374(Top 626%)
25.2M25.20 mi0.35 mi24425-12310210-6810210-6826511(Top 100%)11381(Top 100%)11381(Top 626%)
Finish26.22 mi1.02 mi24741-31610396-18610396-18626556(Top 100%)11403(Top 100%)11403(Top 628%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22531

Females

9088

F45-49

9088

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19261

Females

7243

F45-49

7243

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22531

Females

9088

F45-49

9088

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23255

Females

9488

F45-49

9488

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24157

Females

10009

F45-49

10009

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23958

Females

9932

F45-49

9932

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24864

Females

10492

F45-49

10492

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24887

Females

10544

F45-49

10544

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25862

Females

11030

F45-49

11030

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25203

Females

10760

F45-49

10760

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

25967

Females

11122

F45-49

11122

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25775

Females

11060

F45-49

11060

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

26490

Females

11374

F45-49

11374

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26511

Females

11381

F45-49

11381

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2story building
+22ft-21ft

Overall

26556

Females

11403

F45-49

11403

Passing Analysis

Category:
Athletes Passed
985
Passed By
4663
Net Change
-3678
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21063
5K → 10K87072+798#21063#20265
10K → 15K20940-920#20265#21185
15K → 20K18640-622#21185#21807
20K → Half5156-151#21807#21958
Half → 25K19519-500#21958#22458
25K → 30K11677-666#22458#23124
30K → 20M19196-177#23124#23301
20M → 21M2269-267#23301#23568
21M → 35K1092-82#23568#23650
35K → 23M6280-274#23650#23924
23M → 24M3123-120#23924#24044
24M → 40K2260-258#24044#24302
40K → 25.2M0123-123#24302#24425
25.2M → Finish0316-316#24425#24741
TOTALS9854663-3678
📊

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