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BOSTON MARATHON 2023

Kelly Pulizzi

Bib: 12580•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 26%
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
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:15/mi
1:08:30
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:36:28
↑ 19↓ 370.5%
25K· 15.53 mi
7:28/mi
1:54:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:32/mi
2:21:05
↑ 181↓ 1480.2%
20M
7:54/mi
2:31:49
↑ 64↓ 500.2%
21M
8:22/mi
2:40:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:45:42
↑ 17↓ 861.7%
23M
7:38/mi
2:55:15
↑ 23↓ 630.6%
24M
7:23/mi
3:02:38
↓ 821.3%
40K· 24.85 mi
7:31/mi
3:09:04
↓ 200.3%
25.2M
8:16/mi
3:11:55
↑ 13↓ 160.2%
Finish· 26.22 mi
7:23/mi
3:19:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:28
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:42:58
Pace7:51 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4423:137:2823:13
7:28
-
10K
6.21 mi11:13:2845:577:2422:44
7:19
-0:09
15K
9.32 mi11:36:011:08:307:2122:33
7:15
-0:04
20K
12.43 mi11:59:031:31:327:2223:02
7:25
+0:10
Half
13.11 mi12:03:591:36:287:224:56
7:14
-0:11
25K
15.53 mi12:22:051:54:347:2318:06
7:28
+0:14
30K
18.64 mi12:48:362:21:057:3426:31
8:32
+1:04
20M
20.00 mi12:59:202:31:497:3510:44
7:54
-0:38
21M
21.00 mi13:07:422:40:117:388:22
8:22
+0:28
35K
21.75 mi13:13:132:45:427:375:31
7:22
-1:00
23M
23.00 mi13:22:462:55:157:379:33
7:38
+0:16
24M
24.00 mi13:30:093:02:387:377:23
7:23
-0:15
40K
24.85 mi13:36:353:09:047:366:26
7:31
+0:08
25.2M
25.20 mi13:39:263:11:557:372:51
8:16
+0:45
Finish
26.22 mi13:46:573:19:267:377:31
7:23
-0:53

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

7:14 /mi

Average Pace

7:37 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:42

81% of race

Time at Steady Pace

37:44

19% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:50:4423:137:2823:13
7:28
#9404
10K
6.21 mi11:13:2845:577:2422:44
7:19
#9154
15K
9.32 mi11:36:011:08:307:2122:33
7:15
#8837
20K
12.43 mi11:59:031:31:327:2223:02
7:25
#8741
Half
13.11 mi12:03:591:36:287:224:56
7:14
#8698
25K
15.53 mi12:22:051:54:347:2318:06
7:28
#8641
30K
18.64 mi12:48:362:21:057:3426:31
8:32
#9729
20M
20.00 mi12:59:202:31:497:3510:44
7:54
#9673
21M
21.00 mi13:07:422:40:117:388:22
8:22
#9660
35K
21.75 mi13:13:132:45:427:375:31
7:22
#9561
23M
23.00 mi13:22:462:55:157:379:33
7:38
#9367
24M
24.00 mi13:30:093:02:387:377:23
7:23
#9220
40K
24.85 mi13:36:353:09:047:366:26
7:31
#9115
25.2M
25.20 mi13:39:263:11:557:372:51
8:16
#9095
Finish
26.22 mi13:46:573:19:267:377:31
7:23
#9028
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9404158215828252(Top 31%)1167(Top 10%)1167(Top 24%)
10K6.21 mi3.10 mi9154+2501473+1091473+1098996(Top 34%)1406(Top 12%)1406(Top 29%)
15K9.32 mi3.11 mi8837+3171362+1111362+1118252(Top 31%)1167(Top 10%)1167(Top 24%)
20K12.43 mi3.11 mi8741+961331+311331+318635(Top 32%)1349(Top 12%)1349(Top 28%)
Half13.11 mi0.68 mi8698+431319+121319+128159(Top 31%)1165(Top 10%)1165(Top 24%)
25K15.53 mi2.42 mi8641+571310+91310+98541(Top 32%)1370(Top 12%)1370(Top 28%)
30K18.64 mi3.11 mi9729-10881771-4611771-46114522(Top 55%)4634(Top 41%)4634(Top 95%)
20M20.00 mi1.36 mi9673+561780-91780-99564(Top 36%)2040(Top 18%)2040(Top 42%)
21M21.00 mi1.00 mi9660+131788-81788-89655(Top 36%)2211(Top 19%)2211(Top 45%)
35K21.75 mi0.75 mi9561+991768+201768+207689(Top 29%)1383(Top 12%)1383(Top 28%)
23M23.00 mi1.25 mi9367+1941717+511717+517307(Top 27%)1304(Top 11%)1304(Top 27%)
24M24.00 mi1.00 mi9220+1471685+321685+326978(Top 26%)1273(Top 11%)1273(Top 26%)
40K24.85 mi0.85 mi9115+1051664+211664+216891(Top 26%)1322(Top 12%)1322(Top 27%)
25.2M25.20 mi0.35 mi9095+201662+21662+28150(Top 31%)1877(Top 16%)1877(Top 38%)
Finish26.22 mi1.02 mi9028+671660+21660+27654(Top 29%)1683(Top 15%)1683(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8252

Females

1167

F18-39

1167

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

8996

Females

1406

F18-39

1406

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8252

Females

1167

F18-39

1167

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8635

Females

1349

F18-39

1349

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8159

Females

1165

F18-39

1165

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8541

Females

1370

F18-39

1370

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14522

Females

4634

F18-39

4634

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9564

Females

2040

F18-39

2040

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9655

Females

2211

F18-39

2211

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7689

Females

1383

F18-39

1383

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7307

Females

1304

F18-39

1304

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6978

Females

1273

F18-39

1273

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6891

Females

1322

F18-39

1322

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8150

Females

1877

F18-39

1877

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7654

Females

1683

F18-39

1683

Passing Analysis

Category:
Athletes Passed
2035
Passed By
1659
Net Change
+376
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9404
5K → 10K422172+250#9404#9154
10K → 15K34427+317#9154#8837
15K → 20K17276+96#8837#8741
20K → Half507+43#8741#8698
Half → 25K12265+57#8698#8641
25K → 30K191107-1088#8641#9729
30K → 20M11761+56#9729#9673
20M → 21M7764+13#9673#9660
21M → 35K1045+99#9660#9561
35K → 23M20410+194#9561#9367
23M → 24M1547+147#9367#9220
24M → 40K11611+105#9220#9115
40K → 25.2M3010+20#9115#9095
25.2M → Finish10437+67#9095#9028
TOTALS20351659+376
📊

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