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BOSTON MARATHON 2023

Dana Stumpff

Bib: 11458•F

KS

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:43
Rank: #18242
Start → 5K
26:43 | 8:36/mi
10K· 6.21 mi
53:45
Rank: #18803 (-561)
5K → 10K
27:02 | 8:42/mi
15K· 9.32 mi
1:20:34
Rank: #18718 (+85)
10K → 15K
26:49 | 8:38/mi
20K· 12.43 mi
1:48:25
Rank: #18915 (-197)
15K → 20K
27:51 | 8:58/mi
Half· 13.11 mi
1:54:20
Rank: #18925 (-10)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:16:33
Rank: #19040 (-115)
Half → 25K
22:13 | 9:10/mi
30K· 18.64 mi
2:46:05
Rank: #19154 (-114)
25K → 30K
29:32 | 9:30/mi
20M
2:58:32
Rank: #19005 (+149)
30K → 20M
12:27 | 9:10/mi
21M
3:08:07
Rank: #18850 (+155)
20M → 21M
9:35 | 9:35/mi
35K· 21.75 mi
3:14:56
Rank: #18828 (+22)
21M → 35K
6:49 | 9:07/mi
23M
3:26:17
Rank: #18664 (+164)
35K → 23M
11:21 | 9:04/mi
24M
3:35:11
Rank: #18582 (+82)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:42:39
Rank: #18440 (+142)
24M → 40K
7:28 | 8:44/mi
25.2M
3:45:56
Rank: #18391 (+49)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:54:59
Rank: #18374 (+17)
25.2M → Finish
9:03 | 8:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:20
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:00:39
Pace9:12 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4426:438:3626:43
8:36
-
10K
6.21 mi11:47:4653:458:3927:02
8:42
+0:06
15K
9.32 mi12:14:351:20:348:3926:49
8:38
-0:04
20K
12.43 mi12:42:261:48:258:4327:51
8:58
+0:20
Half
13.11 mi12:48:211:54:208:435:55
8:40
-0:18
25K
15.53 mi13:10:342:16:338:4722:13
9:10
+0:30
30K
18.64 mi13:40:062:46:058:5529:32
9:30
+0:20
20M
20.00 mi13:52:332:58:328:5612:27
9:10
-0:20
21M
21.00 mi14:02:083:08:078:579:35
9:35
+0:25
35K
21.75 mi14:08:573:14:568:586:49
9:07
-0:28
23M
23.00 mi14:20:183:26:178:5811:21
9:04
-0:03
24M
24.00 mi14:29:123:35:118:588:54
8:54
-0:10
40K
24.85 mi14:36:403:42:398:577:28
8:44
-0:10
25.2M
25.20 mi14:39:573:45:568:583:17
9:31
+0:47
Finish
26.22 mi14:49:003:54:598:589:03
8:53
-0:38

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

8:36 /mi

Average Pace

8:58 /mi

Slowest Pace

9:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:35

82% of race

Time at Steady Pace

42:24

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:58 /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 mi11:20:4426:438:3626:43
8:36
#18242
10K
6.21 mi11:47:4653:458:3927:02
8:42
#18803
15K
9.32 mi12:14:351:20:348:3926:49
8:38
#18718
20K
12.43 mi12:42:261:48:258:4327:51
8:58
#18915
Half
13.11 mi12:48:211:54:208:435:55
8:40
#18925
25K
15.53 mi13:10:342:16:338:4722:13
9:10
#19040
30K
18.64 mi13:40:062:46:058:5529:32
9:30
#19154
20M
20.00 mi13:52:332:58:328:5612:27
9:10
#19005
21M
21.00 mi14:02:083:08:078:579:35
9:35
#18850
35K
21.75 mi14:08:573:14:568:586:49
9:07
#18828
23M
23.00 mi14:20:183:26:178:5811:21
9:04
#18664
24M
24.00 mi14:29:123:35:118:588:54
8:54
#18582
40K
24.85 mi14:36:403:42:398:577:28
8:44
#18440
25.2M
25.20 mi14:39:573:45:568:583:17
9:31
#18391
Finish
26.22 mi14:49:003:54:598:589:03
8:53
#18374
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi182426706670618638(Top 70%)6881(Top 60%)6881(Top 141%)
10K6.21 mi3.10 mi18803-5617014-3087014-30819448(Top 73%)7350(Top 64%)7350(Top 150%)
15K9.32 mi3.11 mi18718+856953+616953+6118638(Top 70%)6881(Top 60%)6881(Top 141%)
20K12.43 mi3.11 mi18915-1977073-1207073-12019532(Top 73%)7396(Top 65%)7396(Top 151%)
Half13.11 mi0.68 mi18925-107077-47077-418818(Top 71%)6975(Top 61%)6975(Top 143%)
25K15.53 mi2.42 mi19040-1157140-637140-6319684(Top 74%)7520(Top 66%)7520(Top 154%)
30K18.64 mi3.11 mi19154-1147228-887228-8819462(Top 73%)7447(Top 65%)7447(Top 152%)
20M20.00 mi1.36 mi19005+1497163+657163+6517389(Top 65%)6388(Top 56%)6388(Top 131%)
21M21.00 mi1.00 mi18850+1557081+827081+8216381(Top 62%)5847(Top 51%)5847(Top 120%)
35K21.75 mi0.75 mi18828+227074+77074+718408(Top 69%)7058(Top 62%)7058(Top 145%)
23M23.00 mi1.25 mi18664+1646993+816993+8116407(Top 62%)5979(Top 52%)5979(Top 122%)
24M24.00 mi1.00 mi18582+826953+406953+4016794(Top 63%)6250(Top 55%)6250(Top 128%)
40K24.85 mi0.85 mi18440+1426888+656888+6514764(Top 55%)5177(Top 45%)5177(Top 106%)
25.2M25.20 mi0.35 mi18391+496866+226866+2215383(Top 58%)5544(Top 49%)5544(Top 114%)
Finish26.22 mi1.02 mi18374+176867-16867-117440(Top 66%)6614(Top 58%)6614(Top 135%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18638

Females

6881

F18-39

6881

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

19448

Females

7350

F18-39

7350

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18638

Females

6881

F18-39

6881

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19532

Females

7396

F18-39

7396

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18818

Females

6975

F18-39

6975

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

19684

Females

7520

F18-39

7520

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19462

Females

7447

F18-39

7447

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17389

Females

6388

F18-39

6388

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16381

Females

5847

F18-39

5847

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18408

Females

7058

F18-39

7058

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16407

Females

5979

F18-39

5979

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16794

Females

6250

F18-39

6250

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14764

Females

5177

F18-39

5177

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15383

Females

5544

F18-39

5544

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17440

Females

6614

F18-39

6614

Passing Analysis

Category:
Athletes Passed
1641
Passed By
1773
Net Change
-132
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18242
5K → 10K122683-561#18242#18803
10K → 15K224139+85#18803#18718
15K → 20K106303-197#18718#18915
20K → Half2939-10#18915#18925
Half → 25K93208-115#18925#19040
25K → 30K130244-114#19040#19154
30K → 20M16819+149#19154#19005
20M → 21M17116+155#19005#18850
21M → 35K5836+22#18850#18828
35K → 23M18016+164#18828#18664
23M → 24M10220+82#18664#18582
24M → 40K1475+142#18582#18440
40K → 25.2M534+49#18440#18391
25.2M → Finish5841+17#18391#18374
TOTALS16411773-132
📊

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