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BOSTON MARATHON 2023

Valerie Duhn

Bib: 7693•F

MI

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

Start
0:00:00
Race begins
5K· 3.11 mi
23:58
Rank: #11580
Start → 5K
23:58 | 7:43/mi
10K· 6.21 mi
48:03
Rank: #12125 (-545)
5K → 10K
24:05 | 7:45/mi
15K· 9.32 mi
1:12:08
Rank: #12144 (-19)
10K → 15K
24:05 | 7:45/mi
20K· 12.43 mi
1:36:16
Rank: #11926 (+218)
15K → 20K
24:08 | 7:46/mi
Half· 13.11 mi
1:41:30
Rank: #11920 (+6)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:00:16
Rank: #11644 (+276)
Half → 25K
18:46 | 7:44/mi
30K· 18.64 mi
2:24:24
Rank: #11143 (+501)
25K → 30K
24:08 | 7:46/mi
20M
2:34:53
Rank: #10879 (+264)
30K → 20M
10:29 | 7:43/mi
21M
2:42:57
Rank: #10686 (+193)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:48:25
Rank: #10528 (+158)
21M → 35K
5:28 | 7:18/mi
23M
2:57:57
Rank: #10304 (+224)
35K → 23M
9:32 | 7:37/mi
24M
3:05:23
Rank: #10138 (+166)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
3:11:50
Rank: #9981 (+157)
24M → 40K
6:27 | 7:33/mi
25.2M
3:14:42
Rank: #9935 (+46)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:22:14
Rank: #9803 (+132)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:41:30
Pace7:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:44
Pace7:41 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:2523:587:4323:58
7:43
-
10K
6.21 mi10:53:3048:037:4424:05
7:45
+0:02
15K
9.32 mi11:17:351:12:087:4424:05
7:45
0:00
20K
12.43 mi11:41:431:36:167:4524:08
7:46
+0:01
Half
13.11 mi11:46:571:41:307:455:14
7:40
-0:06
25K
15.53 mi12:05:432:00:167:4518:46
7:44
+0:04
30K
18.64 mi12:29:512:24:247:4524:08
7:46
+0:02
20M
20.00 mi12:40:202:34:537:4510:29
7:43
-0:03
21M
21.00 mi12:48:242:42:577:468:04
8:04
+0:21
35K
21.75 mi12:53:522:48:257:455:28
7:18
-0:46
23M
23.00 mi13:03:242:57:577:449:32
7:37
+0:19
24M
24.00 mi13:10:503:05:237:437:26
7:26
-0:11
40K
24.85 mi13:17:173:11:507:436:27
7:33
+0:07
25.2M
25.20 mi13:20:093:14:427:442:52
8:19
+0:46
Finish
26.22 mi13:27:413:22:147:437:32
7:24
-0:55

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

7:18 /mi

Average Pace

7:43 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:18

95% of race

Time at Steady Pace

10:56

5% 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 mi10:29:2523:587:4323:58
7:43
#11580
10K
6.21 mi10:53:3048:037:4424:05
7:45
#12125
15K
9.32 mi11:17:351:12:087:4424:05
7:45
#12144
20K
12.43 mi11:41:431:36:167:4524:08
7:46
#11926
Half
13.11 mi11:46:571:41:307:455:14
7:40
#11920
25K
15.53 mi12:05:432:00:167:4518:46
7:44
#11644
30K
18.64 mi12:29:512:24:247:4524:08
7:46
#11143
20M
20.00 mi12:40:202:34:537:4510:29
7:43
#10879
21M
21.00 mi12:48:242:42:577:468:04
8:04
#10686
35K
21.75 mi12:53:522:48:257:455:28
7:18
#10528
23M
23.00 mi13:03:242:57:577:449:32
7:37
#10304
24M
24.00 mi13:10:503:05:237:437:26
7:26
#10138
40K
24.85 mi13:17:173:11:507:436:27
7:33
#9981
25.2M
25.20 mi13:20:093:14:427:442:52
8:19
#9935
Finish
26.22 mi13:27:413:22:147:437:32
7:24
#9803
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi115802626262612309(Top 46%)3076(Top 27%)3076(Top 164%)
10K6.21 mi3.10 mi12125-5452929-3032929-30312697(Top 48%)3250(Top 28%)3250(Top 173%)
15K9.32 mi3.11 mi12144-192972-432972-4312309(Top 46%)3076(Top 27%)3076(Top 164%)
20K12.43 mi3.11 mi11926+2182872+1002872+10011466(Top 43%)2664(Top 23%)2664(Top 142%)
Half13.11 mi0.68 mi11920+62865+72865+711635(Top 44%)2679(Top 23%)2679(Top 143%)
25K15.53 mi2.42 mi11644+2762721+1442721+14410625(Top 40%)2295(Top 20%)2295(Top 122%)
30K18.64 mi3.11 mi11143+5012489+2322489+2329124(Top 34%)1762(Top 15%)1762(Top 94%)
20M20.00 mi1.36 mi10879+2642367+1222367+1228328(Top 31%)1532(Top 13%)1532(Top 82%)
21M21.00 mi1.00 mi10686+1932295+722295+727836(Top 29%)1451(Top 13%)1451(Top 77%)
35K21.75 mi0.75 mi10528+1582231+642231+647249(Top 27%)1211(Top 11%)1211(Top 64%)
23M23.00 mi1.25 mi10304+2242148+832148+837218(Top 27%)1260(Top 11%)1260(Top 67%)
24M24.00 mi1.00 mi10138+1662095+532095+537306(Top 27%)1415(Top 12%)1415(Top 75%)
40K24.85 mi0.85 mi9981+1572052+432052+437023(Top 26%)1384(Top 12%)1384(Top 74%)
25.2M25.20 mi0.35 mi9935+462049+32049+38452(Top 32%)2003(Top 18%)2003(Top 107%)
Finish26.22 mi1.02 mi9803+1322010+392010+397777(Top 29%)1737(Top 15%)1737(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12309

Females

3076

F40-44

3076

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12697

Females

3250

F40-44

3250

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12309

Females

3076

F40-44

3076

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11466

Females

2664

F40-44

2664

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11635

Females

2679

F40-44

2679

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10625

Females

2295

F40-44

2295

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9124

Females

1762

F40-44

1762

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8328

Females

1532

F40-44

1532

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7836

Females

1451

F40-44

1451

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7249

Females

1211

F40-44

1211

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7218

Females

1260

F40-44

1260

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7306

Females

1415

F40-44

1415

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7023

Females

1384

F40-44

1384

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8452

Females

2003

F40-44

2003

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7777

Females

1737

F40-44

1737

Passing Analysis

Category:
Athletes Passed
2838*
Passed By
1061
Net Change
+1777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11580
5K → 10K114659-545#11580#12125
10K → 15K185204-19#12125#12144
15K → 20K28163+218#12144#11926
20K → Half3024+6#11926#11920
Half → 25K30933+276#11920#11644
25K → 30K51514+501#11644#11143
30K → 20M270*6+264#11143#10879
20M → 21M2029+193#10879#10686
21M → 35K1591+158#10686#10528
35K → 23M2284+224#10528#10304
23M → 24M17610+166#10304#10138
24M → 40K162*5+157#10138#9981
40K → 25.2M5610+46#9981#9935
25.2M → Finish151*19+132#9935#9803
TOTALS2838*1061+1777

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

📊

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