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BOSTON MARATHON 2023

Kathleen Harcourt

Bib: 16279•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Division (F18-39)
#0 / 4884
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
8:08/mi
25:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
50:16
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:15:05
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:40:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:45:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:05:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:44/mi
2:33:00
↑ 181↓ 1480.2%
20M
8:56/mi
2:45:08
↑ 64↓ 500.2%
21M
9:27/mi
2:54:35
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
3:01:16
↑ 17↓ 861.7%
23M
9:02/mi
3:12:35
↑ 23↓ 630.6%
24M
8:54/mi
3:21:29
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:29:02
↓ 200.3%
25.2M
9:31/mi
3:32:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:57/mi
3:41:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:57
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:55:29
Pace8:49 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5925:168:0825:16
8:08
-
10K
6.21 mi11:40:5950:168:0525:00
8:03
-0:05
15K
9.32 mi12:05:481:15:058:0324:49
7:59
-0:04
20K
12.43 mi12:31:061:40:238:0525:18
8:09
+0:10
Half
13.11 mi12:36:401:45:578:055:34
8:10
+0:01
25K
15.53 mi12:56:362:05:538:0619:56
8:13
+0:03
30K
18.64 mi13:23:432:33:008:1227:07
8:44
+0:31
20M
20.00 mi13:35:512:45:088:1512:08
8:56
+0:12
21M
21.00 mi13:45:182:54:358:199:27
9:27
+0:31
35K
21.75 mi13:51:593:01:168:206:41
8:56
-0:31
23M
23.00 mi14:03:183:12:358:2211:19
9:02
+0:06
24M
24.00 mi14:12:123:21:298:248:54
8:54
-0:08
40K
24.85 mi14:19:453:29:028:257:33
8:50
-0:04
25.2M
25.20 mi14:23:023:32:198:263:17
9:31
+0:41
Finish
26.22 mi14:32:093:41:268:279:07
8:57
-0:34

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

7:59 /mi

Average Pace

8:27 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:00

69% of race

Time at Steady Pace

55:42

25% of race

Time at Slower Pace

12:44

6% of race

Average Pace: 8:27 /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 mi11:15:5925:168:0825:16
8:08
#14969
10K
6.21 mi11:40:5950:168:0525:00
8:03
#15044
15K
9.32 mi12:05:481:15:058:0324:49
7:59
#14796
20K
12.43 mi12:31:061:40:238:0525:18
8:09
#14713
Half
13.11 mi12:36:401:45:578:055:34
8:10
#14749
25K
15.53 mi12:56:362:05:538:0619:56
8:13
#14676
30K
18.64 mi13:23:432:33:008:1227:07
8:44
#14872
20M
20.00 mi13:35:512:45:088:1512:08
8:56
#14946
21M
21.00 mi13:45:182:54:358:199:27
9:27
#14977
35K
21.75 mi13:51:593:01:168:206:41
8:56
#15082
23M
23.00 mi14:03:183:12:358:2211:19
9:02
#15109
24M
24.00 mi14:12:123:21:298:248:54
8:54
#15175
40K
24.85 mi14:19:453:29:028:257:33
8:50
#15184
25.2M
25.20 mi14:23:023:32:198:263:17
9:31
#15169
Finish
26.22 mi14:32:093:41:268:279:07
8:57
#15288
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149694622462214314(Top 54%)4271(Top 37%)4271(Top 87%)
10K6.21 mi3.10 mi15044-754674-524674-5215161(Top 57%)4769(Top 42%)4769(Top 98%)
15K9.32 mi3.11 mi14796+2484538+1364538+13614314(Top 54%)4271(Top 37%)4271(Top 87%)
20K12.43 mi3.11 mi14713+834505+334505+3314563(Top 55%)4443(Top 39%)4443(Top 91%)
Half13.11 mi0.68 mi14749-364527-224527-2215543(Top 58%)5015(Top 44%)5015(Top 103%)
25K15.53 mi2.42 mi14676+734511+164511+1614414(Top 54%)4466(Top 39%)4466(Top 91%)
30K18.64 mi3.11 mi14872-1964661-1504661-15015663(Top 59%)5307(Top 46%)5307(Top 109%)
20M20.00 mi1.36 mi14946-744737-764737-7616166(Top 61%)5663(Top 50%)5663(Top 116%)
21M21.00 mi1.00 mi14977-314779-424779-4215744(Top 59%)5479(Top 48%)5479(Top 112%)
35K21.75 mi0.75 mi15082-1054869-904869-9017627(Top 66%)6613(Top 58%)6613(Top 135%)
23M23.00 mi1.25 mi15109-274908-394908-3916250(Top 61%)5877(Top 51%)5877(Top 120%)
24M24.00 mi1.00 mi15175-664962-544962-5416776(Top 63%)6232(Top 55%)6232(Top 128%)
40K24.85 mi0.85 mi15184-94985-234985-2315265(Top 57%)5447(Top 48%)5447(Top 112%)
25.2M25.20 mi0.35 mi15169+154989-44989-415323(Top 58%)5484(Top 48%)5484(Top 112%)
Finish26.22 mi1.02 mi15288-1195075-865075-8617712(Top 67%)6756(Top 59%)6756(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14314

Females

4271

F18-39

4271

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15161

Females

4769

F18-39

4769

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14314

Females

4271

F18-39

4271

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14563

Females

4443

F18-39

4443

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15543

Females

5015

F18-39

5015

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

14414

Females

4466

F18-39

4466

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15663

Females

5307

F18-39

5307

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16166

Females

5663

F18-39

5663

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15744

Females

5479

F18-39

5479

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17627

Females

6613

F18-39

6613

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16250

Females

5877

F18-39

5877

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16776

Females

6232

F18-39

6232

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15265

Females

5447

F18-39

5447

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15323

Females

5484

F18-39

5484

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17712

Females

6756

F18-39

6756

Passing Analysis

Category:
Athletes Passed
1528
Passed By
1847
Net Change
-319
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14969
5K → 10K259334-75#14969#15044
10K → 15K32779+248#15044#14796
15K → 20K223140+83#14796#14713
20K → Half1349-36#14713#14749
Half → 25K181108+73#14749#14676
25K → 30K114310-196#14676#14872
30K → 20M56130-74#14872#14946
20M → 21M84115-31#14946#14977
21M → 35K25130-105#14977#15082
35K → 23M6794-27#15082#15109
23M → 24M46112-66#15109#15175
24M → 40K5665-9#15175#15184
40K → 25.2M4631+15#15184#15169
25.2M → Finish31150-119#15169#15288
TOTALS15281847-319
📊

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