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BOSTON MARATHON 2023

Ilona Den Ouden

Bib: 11356•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 32%
Masters (Masters Women)
#0 / 6539
Top 19%
Division (F40-44)
#0 / 1878
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:22
Rank: #12793
Start → 5K
24:22 | 7:51/mi
10K· 6.21 mi
49:01
Rank: #13501 (-708)
5K → 10K
24:39 | 7:56/mi
15K· 9.32 mi
1:13:58
Rank: #13870 (-369)
10K → 15K
24:57 | 8:02/mi
20K· 12.43 mi
1:39:09
Rank: #13925 (-55)
15K → 20K
25:11 | 8:06/mi
Half· 13.11 mi
1:44:38
Rank: #13962 (-37)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:04:30
Rank: #13975 (-13)
Half → 25K
19:52 | 8:12/mi
30K· 18.64 mi
2:30:18
Rank: #13790 (+185)
25K → 30K
25:48 | 8:18/mi
20M
2:41:43
Rank: #13713 (+77)
30K → 20M
11:25 | 8:24/mi
21M
2:50:07
Rank: #13460 (+253)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:56:08
Rank: #13402 (+58)
21M → 35K
6:01 | 8:03/mi
23M
3:06:36
Rank: #13300 (+102)
35K → 23M
10:28 | 8:22/mi
24M
3:14:39
Rank: #13198 (+102)
23M → 24M
8:03 | 8:03/mi
40K· 24.85 mi
3:21:33
Rank: #13069 (+129)
24M → 40K
6:54 | 8:04/mi
25.2M
3:24:34
Rank: #13032 (+37)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:32:46
Rank: #12995 (+37)
25.2M → Finish
8:12 | 8:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:38
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:48:08
Pace8:15 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3724:227:5124:22
7:51
-
10K
6.21 mi11:16:1649:017:5324:39
7:56
+0:05
15K
9.32 mi11:41:131:13:587:5624:57
8:02
+0:06
20K
12.43 mi12:06:241:39:097:5925:11
8:06
+0:04
Half
13.11 mi12:11:531:44:387:595:29
8:02
-0:04
25K
15.53 mi12:31:452:04:308:0119:52
8:12
+0:10
30K
18.64 mi12:57:332:30:188:0425:48
8:18
+0:06
20M
20.00 mi13:08:582:41:438:0511:25
8:24
+0:06
21M
21.00 mi13:17:222:50:078:068:24
8:24
0:00
35K
21.75 mi13:23:232:56:088:066:01
8:03
-0:21
23M
23.00 mi13:33:513:06:368:0710:28
8:22
+0:19
24M
24.00 mi13:41:543:14:398:078:03
8:03
-0:19
40K
24.85 mi13:48:483:21:338:076:54
8:04
+0:01
25.2M
25.20 mi13:51:493:24:348:073:01
8:45
+0:41
Finish
26.22 mi14:00:013:32:468:078:12
8:03
-0:42

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

7:51 /mi

Average Pace

8:07 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:45

99% of race

Time at Steady Pace

3:01

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi10:51:3724:227:5124:22
7:51
#12793
10K
6.21 mi11:16:1649:017:5324:39
7:56
#13501
15K
9.32 mi11:41:131:13:587:5624:57
8:02
#13870
20K
12.43 mi12:06:241:39:097:5925:11
8:06
#13925
Half
13.11 mi12:11:531:44:387:595:29
8:02
#13962
25K
15.53 mi12:31:452:04:308:0119:52
8:12
#13975
30K
18.64 mi12:57:332:30:188:0425:48
8:18
#13790
20M
20.00 mi13:08:582:41:438:0511:25
8:24
#13713
21M
21.00 mi13:17:222:50:078:068:24
8:24
#13460
35K
21.75 mi13:23:232:56:088:066:01
8:03
#13402
23M
23.00 mi13:33:513:06:368:0710:28
8:22
#13300
24M
24.00 mi13:41:543:14:398:078:03
8:03
#13198
40K
24.85 mi13:48:483:21:338:076:54
8:04
#13069
25.2M
25.20 mi13:51:493:24:348:073:01
8:45
#13032
Finish
26.22 mi14:00:013:32:468:078:12
8:03
#12995
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi127933324332414645(Top 55%)4469(Top 39%)4469(Top 238%)
10K6.21 mi3.10 mi13501-7083737-4133737-41314284(Top 54%)4224(Top 37%)4224(Top 225%)
15K9.32 mi3.11 mi13870-3693978-2413978-24114645(Top 55%)4469(Top 39%)4469(Top 238%)
20K12.43 mi3.11 mi13925-554039-614039-6114257(Top 54%)4258(Top 37%)4258(Top 227%)
Half13.11 mi0.68 mi13962-374063-244063-2414678(Top 55%)4474(Top 39%)4474(Top 238%)
25K15.53 mi2.42 mi13975-134093-304093-3014184(Top 53%)4324(Top 38%)4324(Top 230%)
30K18.64 mi3.11 mi13790+1854013+804013+8013062(Top 49%)3791(Top 33%)3791(Top 202%)
20M20.00 mi1.36 mi13713+773985+283985+2813067(Top 49%)3903(Top 34%)3903(Top 208%)
21M21.00 mi1.00 mi13460+2533849+1363849+1369795(Top 37%)2301(Top 20%)2301(Top 123%)
35K21.75 mi0.75 mi13402+583830+193830+1912462(Top 47%)3681(Top 32%)3681(Top 196%)
23M23.00 mi1.25 mi13300+1023799+313799+3112325(Top 46%)3703(Top 32%)3703(Top 197%)
24M24.00 mi1.00 mi13198+1023766+333766+3311616(Top 44%)3394(Top 30%)3394(Top 181%)
40K24.85 mi0.85 mi13069+1293714+523714+5210562(Top 40%)2924(Top 26%)2924(Top 156%)
25.2M25.20 mi0.35 mi13032+373703+113703+1111112(Top 42%)3270(Top 29%)3270(Top 174%)
Finish26.22 mi1.02 mi12995+373698+53698+512460(Top 47%)3937(Top 34%)3937(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14645

Females

4469

F40-44

4469

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

14284

Females

4224

F40-44

4224

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14645

Females

4469

F40-44

4469

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14257

Females

4258

F40-44

4258

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14678

Females

4474

F40-44

4474

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14184

Females

4324

F40-44

4324

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13062

Females

3791

F40-44

3791

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13067

Females

3903

F40-44

3903

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9795

Females

2301

F40-44

2301

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12462

Females

3681

F40-44

3681

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12325

Females

3703

F40-44

3703

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11616

Females

3394

F40-44

3394

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10562

Females

2924

F40-44

2924

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11112

Females

3270

F40-44

3270

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12460

Females

3937

F40-44

3937

Passing Analysis

Category:
Athletes Passed
1739
Passed By
1941
Net Change
-202
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12793
5K → 10K82790-708#12793#13501
10K → 15K76445-369#13501#13870
15K → 20K169224-55#13870#13925
20K → Half1855-37#13925#13962
Half → 25K123136-13#13962#13975
25K → 30K27691+185#13975#13790
30K → 20M12851+77#13790#13713
20M → 21M2574+253#13713#13460
21M → 35K8224+58#13460#13402
35K → 23M14240+102#13402#13300
23M → 24M12725+102#13300#13198
24M → 40K1356+129#13198#13069
40K → 25.2M469+37#13069#13032
25.2M → Finish7841+37#13032#12995
TOTALS17391941-202
📊

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