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BOSTON MARATHON 2023

Katie Herrick

Bib: 10909•F

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0:00
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:42
Rank: #10817
Start → 5K
23:42 | 7:38/mi
10K· 6.21 mi
46:51
Rank: #10397 (+420)
5K → 10K
23:09 | 7:27/mi
15K· 9.32 mi
1:10:01
Rank: #10179 (+218)
10K → 15K
23:10 | 7:27/mi
20K· 12.43 mi
1:33:17
Rank: #9890 (+289)
15K → 20K
23:16 | 7:29/mi
Half· 13.11 mi
1:38:19
Rank: #9843 (+47)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:57:04
Rank: #9939 (-96)
Half → 25K
18:45 | 7:44/mi
30K· 18.64 mi
2:23:42
Rank: #10848 (-909)
25K → 30K
26:38 | 8:34/mi
20M
2:34:54
Rank: #10893 (-45)
30K → 20M
11:12 | 8:15/mi
21M
2:43:15
Rank: #10806 (+87)
20M → 21M
8:21 | 8:21/mi
35K· 21.75 mi
2:48:59
Rank: #10741 (+65)
21M → 35K
5:44 | 7:40/mi
23M
2:58:48
Rank: #10596 (+145)
35K → 23M
9:49 | 7:50/mi
24M
3:06:49
Rank: #10619 (-23)
23M → 24M
8:01 | 8:01/mi
40K· 24.85 mi
3:13:45
Rank: #10591 (+28)
24M → 40K
6:56 | 8:07/mi
25.2M
3:16:45
Rank: #10579 (+12)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:24:29
Rank: #10505 (+74)
25.2M → Finish
7:44 | 7:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:19
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:46:10
Pace8:06 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2123:427:3823:42
7:38
-
10K
6.21 mi11:13:3046:517:3223:09
7:27
-0:11
15K
9.32 mi11:36:401:10:017:3123:10
7:27
0:00
20K
12.43 mi11:59:561:33:177:3023:16
7:29
+0:02
Half
13.11 mi12:04:581:38:197:305:02
7:23
-0:06
25K
15.53 mi12:23:431:57:047:3218:45
7:44
+0:21
30K
18.64 mi12:50:212:23:427:4326:38
8:34
+0:50
20M
20.00 mi13:01:332:34:547:4511:12
8:15
-0:19
21M
21.00 mi13:09:542:43:157:468:21
8:21
+0:06
35K
21.75 mi13:15:382:48:597:465:44
7:40
-0:41
23M
23.00 mi13:25:272:58:487:469:49
7:50
+0:10
24M
24.00 mi13:33:283:06:497:478:01
8:01
+0:11
40K
24.85 mi13:40:243:13:457:486:56
8:07
+0:06
25.2M
25.20 mi13:43:243:16:457:483:00
8:42
+0:35
Finish
26.22 mi13:51:083:24:297:487:44
7:35
-1:07

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

7:23 /mi

Average Pace

7:48 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:18

76% of race

Time at Steady Pace

49:11

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi10:50:2123:427:3823:42
7:38
#10817
10K
6.21 mi11:13:3046:517:3223:09
7:27
#10397
15K
9.32 mi11:36:401:10:017:3123:10
7:27
#10179
20K
12.43 mi11:59:561:33:177:3023:16
7:29
#9890
Half
13.11 mi12:04:581:38:197:305:02
7:23
#9843
25K
15.53 mi12:23:431:57:047:3218:45
7:44
#9939
30K
18.64 mi12:50:212:23:427:4326:38
8:34
#10848
20M
20.00 mi13:01:332:34:547:4511:12
8:15
#10893
21M
21.00 mi13:09:542:43:157:468:21
8:21
#10806
35K
21.75 mi13:15:382:48:597:465:44
7:40
#10741
23M
23.00 mi13:25:272:58:487:469:49
7:50
#10596
24M
24.00 mi13:33:283:06:497:478:01
8:01
#10619
40K
24.85 mi13:40:243:13:457:486:56
8:07
#10591
25.2M
25.20 mi13:43:243:16:457:483:00
8:42
#10579
Finish
26.22 mi13:51:083:24:297:487:44
7:35
#10505
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10817223422349849(Top 37%)1775(Top 16%)1775(Top 36%)
10K6.21 mi3.10 mi10397+4202026+2082026+20810094(Top 38%)1868(Top 16%)1868(Top 38%)
15K9.32 mi3.11 mi10179+2181899+1271899+1279849(Top 37%)1775(Top 16%)1775(Top 36%)
20K12.43 mi3.11 mi9890+2891792+1071792+1079246(Top 35%)1583(Top 14%)1583(Top 32%)
Half13.11 mi0.68 mi9843+471766+261766+269333(Top 35%)1625(Top 14%)1625(Top 33%)
25K15.53 mi2.42 mi9939-961825-591825-5910576(Top 40%)2271(Top 20%)2271(Top 46%)
30K18.64 mi3.11 mi10848-9092324-4992324-49914752(Top 55%)4783(Top 42%)4783(Top 98%)
20M20.00 mi1.36 mi10893-452378-542378-5411961(Top 45%)3247(Top 28%)3247(Top 66%)
21M21.00 mi1.00 mi10806+872360+182360+189560(Top 36%)2174(Top 19%)2174(Top 45%)
35K21.75 mi0.75 mi10741+652346+142346+149743(Top 37%)2247(Top 20%)2247(Top 46%)
23M23.00 mi1.25 mi10596+1452303+432303+438711(Top 33%)1894(Top 17%)1894(Top 39%)
24M24.00 mi1.00 mi10619-232336-332336-3311365(Top 43%)3260(Top 29%)3260(Top 67%)
40K24.85 mi0.85 mi10591+282363-272363-2710781(Top 40%)3029(Top 27%)3029(Top 62%)
25.2M25.20 mi0.35 mi10579+122358+52358+510794(Top 41%)3068(Top 27%)3068(Top 63%)
Finish26.22 mi1.02 mi10505+742347+112347+119233(Top 35%)2342(Top 21%)2342(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9849

Females

1775

F18-39

1775

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10094

Females

1868

F18-39

1868

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9849

Females

1775

F18-39

1775

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9246

Females

1583

F18-39

1583

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9333

Females

1625

F18-39

1625

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10576

Females

2271

F18-39

2271

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14752

Females

4783

F18-39

4783

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11961

Females

3247

F18-39

3247

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9560

Females

2174

F18-39

2174

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9743

Females

2247

F18-39

2247

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8711

Females

1894

F18-39

1894

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11365

Females

3260

F18-39

3260

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10781

Females

3029

F18-39

3029

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10794

Females

3068

F18-39

3068

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9233

Females

2342

F18-39

2342

Passing Analysis

Category:
Athletes Passed
2081*
Passed By
1767
Net Change
+312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10817
5K → 10K540*120+420#10817#10397
10K → 15K31193+218#10397#10179
15K → 20K333*44+289#10179#9890
20K → Half558+47#9890#9843
Half → 25K91186-96#9843#9939
25K → 30K29937-909#9939#10848
30K → 20M68*113-45#10848#10893
20M → 21M12033+87#10893#10806
21M → 35K8015+65#10806#10741
35K → 23M16621+145#10741#10596
23M → 24M6184-23#10596#10619
24M → 40K7850+28#10619#10591
40K → 25.2M3725+12#10591#10579
25.2M → Finish11238+74#10579#10505
TOTALS2081*1767+312

* 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