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BOSTON MARATHON 2023

Katherine Specht

Bib: 16579•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
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
24:39
Rank: #13552
Start → 5K
7:56/mi
24:39 split
10K· 6.21 mi
49:12
Rank: #13732 (-180)
5K → 10K
7:54/mi
24:33 split
15K· 9.32 mi
1:13:22
Rank: #13339 (+393)
10K → 15K
7:47/mi
24:10 split
20K· 12.43 mi
1:37:50
Rank: #13067 (+272)
15K → 20K
7:53/mi
24:28 split
Half· 13.11 mi
1:43:07
Rank: #13004 (+63)
20K → Half
7:45/mi
5:17 split
25K· 15.53 mi
2:02:13
Rank: #12765 (+239)
Half → 25K
7:53/mi
19:06 split
30K· 18.64 mi
2:27:45
Rank: #12692 (+73)
25K → 30K
8:13/mi
25:32 split
20M
2:39:20
Rank: #12768 (-76)
30K → 20M
8:31/mi
11:35 split
21M
2:48:29
Rank: #12844 (-76)
20M → 21M
9:09/mi
9:09 split
35K· 21.75 mi
2:54:48
Rank: #12931 (-87)
21M → 35K
8:27/mi
6:19 split
23M
3:07:01
Rank: #13457 (-526)
35K → 23M
9:45/mi
12:13 split
24M
3:15:55
Rank: #13609 (-152)
23M → 24M
8:54/mi
8:54 split
40K· 24.85 mi
3:23:44
Rank: #13748 (-139)
24M → 40K
9:09/mi
7:49 split
25.2M
3:27:23
Rank: #13871 (-123)
40K → 25.2M
10:35/mi
3:39 split
Finish· 26.22 mi
3:36:14
Rank: #13984 (-113)
25.2M → Finish
8:41/mi
8:51 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:07
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:53:07
Pace8:38 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5224:397:5624:39
7:56
-
10K
6.21 mi11:39:2549:127:5524:33
7:54
-0:02
15K
9.32 mi12:03:351:13:227:5224:10
7:47
-0:07
20K
12.43 mi12:28:031:37:507:5224:28
7:53
+0:06
Half
13.11 mi12:33:201:43:077:525:17
7:45
-0:08
25K
15.53 mi12:52:262:02:137:5219:06
7:53
+0:08
30K
18.64 mi13:17:582:27:457:5625:32
8:13
+0:20
20M
20.00 mi13:29:332:39:207:5811:35
8:31
+0:18
21M
21.00 mi13:38:422:48:298:019:09
9:09
+0:38
35K
21.75 mi13:45:012:54:488:026:19
8:27
-0:42
23M
23.00 mi13:57:143:07:018:0812:13
9:45
+1:18
24M
24.00 mi14:06:083:15:558:108:54
8:54
-0:51
40K
24.85 mi14:13:573:23:448:127:49
9:09
+0:15
25.2M
25.20 mi14:17:363:27:238:143:39
10:35
+1:26
Finish
26.22 mi14:26:273:36:148:158:51
8:41
-1:54

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

7:45 /mi

Average Pace

8:15 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:13

57% of race

Time at Steady Pace

52:17

24% of race

Time at Slower Pace

41:44

19% of race

Average Pace: 8:15 /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 mi11:14:5224:397:5624:39
7:56
#13552
10K
6.21 mi11:39:2549:127:5524:33
7:54
#13732
15K
9.32 mi12:03:351:13:227:5224:10
7:47
#13339
20K
12.43 mi12:28:031:37:507:5224:28
7:53
#13067
Half
13.11 mi12:33:201:43:077:525:17
7:45
#13004
25K
15.53 mi12:52:262:02:137:5219:06
7:53
#12765
30K
18.64 mi13:17:582:27:457:5625:32
8:13
#12692
20M
20.00 mi13:29:332:39:207:5811:35
8:31
#12768
21M
21.00 mi13:38:422:48:298:019:09
9:09
#12844
35K
21.75 mi13:45:012:54:488:026:19
8:27
#12931
23M
23.00 mi13:57:143:07:018:0812:13
9:45
#13457
24M
24.00 mi14:06:083:15:558:108:54
8:54
#13609
40K
24.85 mi14:13:573:23:448:127:49
9:09
#13748
25.2M
25.20 mi14:17:363:27:238:143:39
10:35
#13871
Finish
26.22 mi14:26:273:36:148:158:51
8:41
#13984
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi135523754375412552(Top 47%)3219(Top 28%)3219(Top 66%)
10K6.21 mi3.10 mi13732-1803888-1343888-13414021(Top 53%)4060(Top 36%)4060(Top 83%)
15K9.32 mi3.11 mi13339+3933656+2323656+23212552(Top 47%)3219(Top 28%)3219(Top 66%)
20K12.43 mi3.11 mi13067+2723523+1333523+13312418(Top 47%)3211(Top 28%)3211(Top 66%)
Half13.11 mi0.68 mi13004+633487+363487+3612343(Top 46%)3135(Top 27%)3135(Top 64%)
25K15.53 mi2.42 mi12765+2393377+1103377+11011771(Top 44%)2945(Top 26%)2945(Top 60%)
30K18.64 mi3.11 mi12692+733371+63371+612481(Top 47%)3456(Top 30%)3456(Top 71%)
20M20.00 mi1.36 mi12768-763434-633434-6313785(Top 52%)4284(Top 38%)4284(Top 88%)
21M21.00 mi1.00 mi12844-763501-673501-6714227(Top 53%)4604(Top 40%)4604(Top 94%)
35K21.75 mi0.75 mi12931-873567-663567-6614984(Top 56%)5089(Top 45%)5089(Top 104%)
23M23.00 mi1.25 mi13457-5263895-3283895-32819288(Top 72%)7571(Top 66%)7571(Top 155%)
24M24.00 mi1.00 mi13609-1524007-1124007-11216772(Top 63%)6228(Top 55%)6228(Top 128%)
40K24.85 mi0.85 mi13748-1394112-1054112-10516832(Top 63%)6297(Top 55%)6297(Top 129%)
25.2M25.20 mi0.35 mi13871-1234201-894201-8919357(Top 73%)7691(Top 67%)7691(Top 157%)
Finish26.22 mi1.02 mi13984-1134285-844285-8416402(Top 62%)6039(Top 53%)6039(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12552

Females

3219

F18-39

3219

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14021

Females

4060

F18-39

4060

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12552

Females

3219

F18-39

3219

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12418

Females

3211

F18-39

3211

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

12343

Females

3135

F18-39

3135

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11771

Females

2945

F18-39

2945

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12481

Females

3456

F18-39

3456

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13785

Females

4284

F18-39

4284

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14227

Females

4604

F18-39

4604

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14984

Females

5089

F18-39

5089

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19288

Females

7571

F18-39

7571

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16772

Females

6228

F18-39

6228

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16832

Females

6297

F18-39

6297

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19357

Females

7691

F18-39

7691

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

16402

Females

6039

F18-39

6039

Passing Analysis

Category:
Athletes Passed
1836
Passed By
2268
Net Change
-432
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13552
5K → 10K218398-180#13552#13732
10K → 15K44855+393#13732#13339
15K → 20K32856+272#13339#13067
20K → Half729+63#13067#13004
Half → 25K26728+239#13004#12765
25K → 30K228155+73#12765#12692
30K → 20M77153-76#12692#12768
20M → 21M68144-76#12768#12844
21M → 35K24111-87#12844#12931
35K → 23M10536-526#12931#13457
23M → 24M31183-152#13457#13609
24M → 40K29168-139#13609#13748
40K → 25.2M6129-123#13748#13871
25.2M → Finish30143-113#13871#13984
TOTALS18362268-432
📊

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