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BOSTON MARATHON 2023

Katherine Downing

Bib: 15038•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:29
Rank: #15485
Start → 5K
25:29 | 8:12/mi
10K· 6.21 mi
50:07
Rank: #14864 (+621)
5K → 10K
24:38 | 7:56/mi
15K· 9.32 mi
1:14:20
Rank: #14182 (+682)
10K → 15K
24:13 | 7:48/mi
20K· 12.43 mi
1:38:33
Rank: #13539 (+643)
15K → 20K
24:13 | 7:48/mi
Half· 13.11 mi
1:43:47
Rank: #13449 (+90)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:02:38
Rank: #12995 (+454)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:27:00
Rank: #12356 (+639)
25K → 30K
24:22 | 7:51/mi
20M
2:37:44
Rank: #12097 (+259)
30K → 20M
10:44 | 7:54/mi
21M
2:45:37
Rank: #11743 (+354)
20M → 21M
7:53 | 7:54/mi
35K· 21.75 mi
2:51:14
Rank: #11620 (+123)
21M → 35K
5:37 | 7:30/mi
23M
3:00:42
Rank: #11262 (+358)
35K → 23M
9:28 | 7:34/mi
24M
3:07:58
Rank: #10995 (+267)
23M → 24M
7:16 | 7:16/mi
40K· 24.85 mi
3:14:10
Rank: #10723 (+272)
24M → 40K
6:12 | 7:15/mi
25.2M
3:16:49
Rank: #10606 (+117)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:23:42
Rank: #10267 (+339)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:43:47
Pace7:55 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:55
Pace7:37 /mi
📊Negative Split: 3.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2825:298:1225:29
8:12
-
10K
6.21 mi11:21:0650:078:0424:38
7:56
-0:16
15K
9.32 mi11:45:191:14:207:5924:13
7:48
-0:08
20K
12.43 mi12:09:321:38:337:5624:13
7:48
0:00
Half
13.11 mi12:14:461:43:477:555:14
7:40
-0:08
25K
15.53 mi12:33:372:02:387:5418:51
7:46
+0:06
30K
18.64 mi12:57:592:27:007:5324:22
7:51
+0:05
20M
20.00 mi13:08:432:37:447:5310:44
7:54
+0:03
21M
21.00 mi13:16:362:45:377:537:53
7:54
0:00
35K
21.75 mi13:22:132:51:147:525:37
7:30
-0:24
23M
23.00 mi13:31:413:00:427:519:28
7:34
+0:04
24M
24.00 mi13:38:573:07:587:507:16
7:16
-0:18
40K
24.85 mi13:45:093:14:107:496:12
7:15
-0:01
25.2M
25.20 mi13:47:483:16:497:492:39
7:41
+0:26
Finish
26.22 mi13:54:413:23:427:466:53
6:45
-0:56

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

6:45 /mi

Average Pace

7:46 /mi

Slowest Pace

8:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:26

17% of race

Time at Steady Pace

2:22:47

70% of race

Time at Slower Pace

25:29

13% of race

Average Pace: 7:46 /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 mi10:56:2825:298:1225:29
8:12
#15485
10K
6.21 mi11:21:0650:078:0424:38
7:56
#14864
15K
9.32 mi11:45:191:14:207:5924:13
7:48
#14182
20K
12.43 mi12:09:321:38:337:5624:13
7:48
#13539
Half
13.11 mi12:14:461:43:477:555:14
7:40
#13449
25K
15.53 mi12:33:372:02:387:5418:51
7:46
#12995
30K
18.64 mi12:57:592:27:007:5324:22
7:51
#12356
20M
20.00 mi13:08:432:37:447:5310:44
7:54
#12097
21M
21.00 mi13:16:362:45:377:537:53
7:54
#11743
35K
21.75 mi13:22:132:51:147:525:37
7:30
#11620
23M
23.00 mi13:31:413:00:427:519:28
7:34
#11262
24M
24.00 mi13:38:573:07:587:507:16
7:16
#10995
40K
24.85 mi13:45:093:14:107:496:12
7:15
#10723
25.2M
25.20 mi13:47:483:16:497:492:39
7:41
#10606
Finish
26.22 mi13:54:413:23:427:466:53
6:45
#10267
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154854953495312692(Top 48%)3281(Top 29%)3281(Top 67%)
10K6.21 mi3.10 mi14864+6214564+3894564+38914232(Top 53%)4193(Top 37%)4193(Top 86%)
15K9.32 mi3.11 mi14182+6824163+4014163+40112692(Top 48%)3281(Top 29%)3281(Top 67%)
20K12.43 mi3.11 mi13539+6433802+3613802+36111696(Top 44%)2786(Top 24%)2786(Top 57%)
Half13.11 mi0.68 mi13449+903752+503752+5011644(Top 44%)2688(Top 24%)2688(Top 55%)
25K15.53 mi2.42 mi12995+4543499+2533499+25310904(Top 41%)2433(Top 21%)2433(Top 50%)
30K18.64 mi3.11 mi12356+6393179+3203179+3209698(Top 36%)2021(Top 18%)2021(Top 41%)
20M20.00 mi1.36 mi12097+2593057+1223057+1229510(Top 36%)2035(Top 18%)2035(Top 42%)
21M21.00 mi1.00 mi11743+3542868+1892868+1896681(Top 25%)1023(Top 9%)1023(Top 21%)
35K21.75 mi0.75 mi11620+1232809+592809+598638(Top 32%)1757(Top 15%)1757(Top 36%)
23M23.00 mi1.25 mi11262+3582637+1722637+1726845(Top 26%)1128(Top 10%)1128(Top 23%)
24M24.00 mi1.00 mi10995+2672518+1192518+1196206(Top 23%)998(Top 9%)998(Top 20%)
40K24.85 mi0.85 mi10723+2722410+1082410+1085206(Top 20%)731(Top 6%)731(Top 15%)
25.2M25.20 mi0.35 mi10606+1172372+382372+384910(Top 18%)717(Top 6%)717(Top 15%)
Finish26.22 mi1.02 mi10267+3392229+1432229+1433849(Top 14%)440(Top 4%)440(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12692

Females

3281

F18-39

3281

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14232

Females

4193

F18-39

4193

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12692

Females

3281

F18-39

3281

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11696

Females

2786

F18-39

2786

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11644

Females

2688

F18-39

2688

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10904

Females

2433

F18-39

2433

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9698

Females

2021

F18-39

2021

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9510

Females

2035

F18-39

2035

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6681

Females

1023

F18-39

1023

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8638

Females

1757

F18-39

1757

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6845

Females

1128

F18-39

1128

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6206

Females

998

F18-39

998

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5206

Females

731

F18-39

731

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4910

Females

717

F18-39

717

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3849

Females

440

F18-39

440

Passing Analysis

Category:
Athletes Passed
5386
Passed By
168
Net Change
+5218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15485
5K → 10K71695+621#15485#14864
10K → 15K70321+682#14864#14182
15K → 20K6529+643#14182#13539
20K → Half933+90#13539#13449
Half → 25K46713+454#13449#12995
25K → 30K6456+639#12995#12356
30K → 20M2612+259#12356#12097
20M → 21M3562+354#12097#11743
21M → 35K1296+123#11743#11620
35K → 23M3613+358#11620#11262
23M → 24M2714+267#11262#10995
24M → 40K2720+272#10995#10723
40K → 25.2M1192+117#10723#10606
25.2M → Finish3412+339#10606#10267
TOTALS5386168+5218
📊

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