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BOSTON MARATHON 2023

Kristen Henry

Bib: 12099•F

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:14
Rank: #9459
Start → 5K
23:14 | 7:29/mi
10K· 6.21 mi
46:16
Rank: #9555 (-96)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:09:39
Rank: #9807 (-252)
10K → 15K
23:23 | 7:32/mi
20K· 12.43 mi
1:33:24
Rank: #9976 (-169)
15K → 20K
23:45 | 7:39/mi
Half· 13.11 mi
1:38:36
Rank: #10023 (-47)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:57:31
Rank: #10190 (-167)
Half → 25K
18:55 | 7:48/mi
30K· 18.64 mi
2:22:25
Rank: #10292 (-102)
25K → 30K
24:54 | 8:01/mi
20M
2:33:29
Rank: #10352 (-60)
30K → 20M
11:04 | 8:09/mi
21M
2:41:56
Rank: #10315 (+37)
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:47:42
Rank: #10288 (+27)
21M → 35K
5:46 | 7:42/mi
23M
2:57:43
Rank: #10230 (+58)
35K → 23M
10:01 | 8:00/mi
24M
3:05:30
Rank: #10167 (+63)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:12:10
Rank: #10093 (+74)
24M → 40K
6:40 | 7:48/mi
25.2M
3:15:02
Rank: #10042 (+51)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:22:48
Rank: #9997 (+45)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:36
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:44:12
Pace7:57 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4223:147:2923:14
7:29
-
10K
6.21 mi11:13:4446:167:2723:02
7:25
-0:04
15K
9.32 mi11:37:071:09:397:2823:23
7:32
+0:07
20K
12.43 mi12:00:521:33:247:3123:45
7:39
+0:07
Half
13.11 mi12:06:041:38:367:315:12
7:37
-0:02
25K
15.53 mi12:24:591:57:317:3418:55
7:48
+0:11
30K
18.64 mi12:49:532:22:257:3824:54
8:01
+0:13
20M
20.00 mi13:00:572:33:297:4011:04
8:09
+0:08
21M
21.00 mi13:09:242:41:567:438:27
8:27
+0:18
35K
21.75 mi13:15:102:47:427:435:46
7:42
-0:45
23M
23.00 mi13:25:112:57:437:4410:01
8:00
+0:18
24M
24.00 mi13:32:583:05:307:447:47
7:47
-0:13
40K
24.85 mi13:39:383:12:107:446:40
7:48
+0:01
25.2M
25.20 mi13:42:303:15:027:442:52
8:19
+0:31
Finish
26.22 mi13:50:163:22:487:447:46
7:37
-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

7:25 /mi

Average Pace

7:44 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:29

94% of race

Time at Steady Pace

11:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:50:4223:147:2923:14
7:29
#9459
10K
6.21 mi11:13:4446:167:2723:02
7:25
#9555
15K
9.32 mi11:37:071:09:397:2823:23
7:32
#9807
20K
12.43 mi12:00:521:33:247:3123:45
7:39
#9976
Half
13.11 mi12:06:041:38:367:315:12
7:37
#10023
25K
15.53 mi12:24:591:57:317:3418:55
7:48
#10190
30K
18.64 mi12:49:532:22:257:3824:54
8:01
#10292
20M
20.00 mi13:00:572:33:297:4011:04
8:09
#10352
21M
21.00 mi13:09:242:41:567:438:27
8:27
#10315
35K
21.75 mi13:15:102:47:427:435:46
7:42
#10288
23M
23.00 mi13:25:112:57:437:4410:01
8:00
#10230
24M
24.00 mi13:32:583:05:307:447:47
7:47
#10167
40K
24.85 mi13:39:383:12:107:446:40
7:48
#10093
25.2M
25.20 mi13:42:303:15:027:442:52
8:19
#10042
Finish
26.22 mi13:50:163:22:487:447:46
7:37
#9997
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi94591604160410398(Top 39%)2025(Top 18%)2025(Top 41%)
10K6.21 mi3.10 mi9555-961636-321636-329768(Top 37%)1719(Top 15%)1719(Top 35%)
15K9.32 mi3.11 mi9807-2521751-1151751-11510398(Top 39%)2025(Top 18%)2025(Top 41%)
20K12.43 mi3.11 mi9976-1691826-751826-7510473(Top 39%)2131(Top 19%)2131(Top 44%)
Half13.11 mi0.68 mi10023-471846-201846-2011248(Top 42%)2479(Top 22%)2479(Top 51%)
25K15.53 mi2.42 mi10190-1671947-1011947-10111106(Top 42%)2532(Top 22%)2532(Top 52%)
30K18.64 mi3.11 mi10292-1022051-1042051-10411017(Top 41%)2645(Top 23%)2645(Top 54%)
20M20.00 mi1.36 mi10352-602093-422093-4211308(Top 42%)2882(Top 25%)2882(Top 59%)
21M21.00 mi1.00 mi10315+372106-132106-1310192(Top 38%)2467(Top 22%)2467(Top 51%)
35K21.75 mi0.75 mi10288+272106210610023(Top 38%)2361(Top 21%)2361(Top 48%)
23M23.00 mi1.25 mi10230+582110-42110-49752(Top 37%)2379(Top 21%)2379(Top 49%)
24M24.00 mi1.00 mi10167+632108+22108+29677(Top 36%)2426(Top 21%)2426(Top 50%)
40K24.85 mi0.85 mi10093+742103+52103+58692(Top 33%)2028(Top 18%)2028(Top 42%)
25.2M25.20 mi0.35 mi10042+512095+82095+88462(Top 32%)2013(Top 18%)2013(Top 41%)
Finish26.22 mi1.02 mi9997+452093+22093+29443(Top 35%)2448(Top 21%)2448(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10398

Females

2025

F18-39

2025

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9768

Females

1719

F18-39

1719

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10398

Females

2025

F18-39

2025

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10473

Females

2131

F18-39

2131

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11248

Females

2479

F18-39

2479

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11106

Females

2532

F18-39

2532

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11017

Females

2645

F18-39

2645

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11308

Females

2882

F18-39

2882

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10192

Females

2467

F18-39

2467

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10023

Females

2361

F18-39

2361

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9752

Females

2379

F18-39

2379

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9677

Females

2426

F18-39

2426

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8692

Females

2028

F18-39

2028

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8462

Females

2013

F18-39

2013

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9443

Females

2448

F18-39

2448

Passing Analysis

Category:
Athletes Passed
1338*
Passed By
1875
Net Change
-538
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9459
5K → 10K246342-96#9459#9555
10K → 15K88340-252#9555#9807
15K → 20K109*278-169#9807#9976
20K → Half1460-47#9976#10023
Half → 25K74241-167#10023#10190
25K → 30K122224-102#10190#10292
30K → 20M52*112-60#10292#10352
20M → 21M10871+37#10352#10315
21M → 35K5730+27#10315#10288
35K → 23M10850+58#10288#10230
23M → 24M10037+63#10230#10167
24M → 40K9723+74#10167#10093
40K → 25.2M62*11+51#10093#10042
25.2M → Finish101*56+45#10042#9997
TOTALS1338*1875-538

* 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