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BOSTON MARATHON 2023

Claire Jennings

Bib: 16193•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Division (F18-39)
#0 / 4884
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:35/mi
23:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
46:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:39/mi
1:10:26
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:34:56
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:40:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
1:59:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:16/mi
2:25:23
↑ 181↓ 1480.2%
20M
8:28/mi
2:36:54
↑ 64↓ 500.2%
21M
9:00/mi
2:45:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:52:07
↑ 17↓ 861.7%
23M
8:42/mi
3:03:00
↑ 23↓ 630.6%
24M
8:24/mi
3:11:24
↓ 821.3%
40K· 24.85 mi
8:30/mi
3:18:40
↓ 200.3%
25.2M
9:14/mi
3:21:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:30:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:19
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:49:56
Pace8:23 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5223:357:3523:35
7:35
-
10K
6.21 mi11:36:5846:417:3123:06
7:26
-0:09
15K
9.32 mi12:00:431:10:267:3323:45
7:39
+0:13
20K
12.43 mi12:25:131:34:567:3824:30
7:53
+0:14
Half
13.11 mi12:30:361:40:197:395:23
7:53
0:00
25K
15.53 mi12:49:591:59:427:4219:23
8:00
+0:07
30K
18.64 mi13:15:402:25:237:4825:41
8:16
+0:16
20M
20.00 mi13:27:112:36:547:5111:31
8:28
+0:12
21M
21.00 mi13:36:112:45:547:549:00
9:00
+0:32
35K
21.75 mi13:42:242:52:077:556:13
8:19
-0:41
23M
23.00 mi13:53:173:03:007:5710:53
8:42
+0:23
24M
24.00 mi14:01:413:11:247:598:24
8:24
-0:18
40K
24.85 mi14:08:573:18:408:007:16
8:30
+0:06
25.2M
25.20 mi14:12:083:21:518:013:11
9:14
+0:44
Finish
26.22 mi14:20:323:30:158:018:24
8:15
-0:59

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

7:26 /mi

Average Pace

8:01 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:42

57% of race

Time at Steady Pace

1:07:29

32% of race

Time at Slower Pace

23:04

11% of race

Average Pace: 8:01 /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 mi11:13:5223:357:3523:35
7:35
#10468
10K
6.21 mi11:36:5846:417:3123:06
7:26
#10171
15K
9.32 mi12:00:431:10:267:3323:45
7:39
#10568
20K
12.43 mi12:25:131:34:567:3824:30
7:53
#11025
Half
13.11 mi12:30:361:40:197:395:23
7:53
#11145
25K
15.53 mi12:49:591:59:427:4219:23
8:00
#11349
30K
18.64 mi13:15:402:25:237:4825:41
8:16
#11603
20M
20.00 mi13:27:112:36:547:5111:31
8:28
#11753
21M
21.00 mi13:36:112:45:547:549:00
9:00
#11866
35K
21.75 mi13:42:242:52:077:556:13
8:19
#11959
23M
23.00 mi13:53:173:03:007:5710:53
8:42
#12102
24M
24.00 mi14:01:413:11:247:598:24
8:24
#12213
40K
24.85 mi14:08:573:18:408:007:16
8:30
#12233
25.2M
25.20 mi14:12:083:21:518:013:11
9:14
#12263
Finish
26.22 mi14:20:323:30:158:018:24
8:15
#12343
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104682073207311389(Top 43%)2565(Top 22%)2565(Top 53%)
10K6.21 mi3.10 mi10171+2971916+1571916+1579944(Top 37%)1794(Top 16%)1794(Top 37%)
15K9.32 mi3.11 mi10568-3972104-1882104-18811389(Top 43%)2565(Top 22%)2565(Top 53%)
20K12.43 mi3.11 mi11025-4572343-2392343-23912512(Top 47%)3266(Top 29%)3266(Top 67%)
Half13.11 mi0.68 mi11145-1202410-672410-6713528(Top 51%)3804(Top 33%)3804(Top 78%)
25K15.53 mi2.42 mi11349-2042563-1532563-15312706(Top 48%)3471(Top 30%)3471(Top 71%)
30K18.64 mi3.11 mi11603-2542751-1882751-18812805(Top 48%)3636(Top 32%)3636(Top 74%)
20M20.00 mi1.36 mi11753-1502855-1042855-10413487(Top 51%)4116(Top 36%)4116(Top 84%)
21M21.00 mi1.00 mi11866-1132934-792934-7913414(Top 50%)4159(Top 36%)4159(Top 85%)
35K21.75 mi0.75 mi11959-932997-632997-6314154(Top 53%)4634(Top 41%)4634(Top 95%)
23M23.00 mi1.25 mi12102-1433113-1163113-11614335(Top 54%)4808(Top 42%)4808(Top 98%)
24M24.00 mi1.00 mi12213-1113194-813194-8113880(Top 52%)4595(Top 40%)4595(Top 94%)
40K24.85 mi0.85 mi12233-203221-273221-2713343(Top 50%)4379(Top 38%)4379(Top 90%)
25.2M25.20 mi0.35 mi12263-303252-313252-3113826(Top 52%)4637(Top 41%)4637(Top 95%)
Finish26.22 mi1.02 mi12343-803318-663318-6613731(Top 52%)4590(Top 40%)4590(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11389

Females

2565

F18-39

2565

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9944

Females

1794

F18-39

1794

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11389

Females

2565

F18-39

2565

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12512

Females

3266

F18-39

3266

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13528

Females

3804

F18-39

3804

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12706

Females

3471

F18-39

3471

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12805

Females

3636

F18-39

3636

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13487

Females

4116

F18-39

4116

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13414

Females

4159

F18-39

4159

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14154

Females

4634

F18-39

4634

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14335

Females

4808

F18-39

4808

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13880

Females

4595

F18-39

4595

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13343

Females

4379

F18-39

4379

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13826

Females

4637

F18-39

4637

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13731

Females

4590

F18-39

4590

Passing Analysis

Category:
Athletes Passed
1129*
Passed By
3004
Net Change
-1875
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10468
5K → 10K475*178+297#10468#10171
10K → 15K65462-397#10171#10568
15K → 20K47504-457#10568#11025
20K → Half3123-120#11025#11145
Half → 25K72276-204#11145#11349
25K → 30K109363-254#11349#11603
30K → 20M64214-150#11603#11753
20M → 21M51164-113#11753#11866
21M → 35K27120-93#11866#11959
35K → 23M48191-143#11959#12102
23M → 24M37148-111#12102#12213
24M → 40K5171-20#12213#12233
40K → 25.2M2656-30#12233#12263
25.2M → Finish54134-80#12263#12343
TOTALS1129*3004-1875

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

📊

Passing Visuals

Category:
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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