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BOSTON MARATHON 2023

Catherine Kress

Bib: 26266•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
9:01/mi
28:01
↑ 97↓ 3451.5%
10K· 6.21 mi
8:56/mi
55:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:23:40
↑ 67↓ 78
20K· 12.43 mi
8:52/mi
1:51:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:57:04
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:18:34
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:47:47
↑ 181↓ 1480.2%
20M
9:11/mi
3:00:16
↑ 64↓ 500.2%
21M
9:47/mi
3:10:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
3:16:17
↑ 17↓ 861.7%
23M
9:08/mi
3:27:43
↑ 23↓ 630.6%
24M
8:22/mi
3:36:05
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:43:33
↓ 200.3%
25.2M
9:20/mi
3:46:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:53/mi
3:55:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:04
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time1:58:45
Pace9:04 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4128:019:0128:01
9:01
-
10K
6.21 mi12:12:2755:478:5927:46
8:56
-0:05
15K
9.32 mi12:40:201:23:408:5927:53
8:58
+0:02
20K
12.43 mi13:07:541:51:148:5727:34
8:52
-0:06
Half
13.11 mi13:13:441:57:048:565:50
8:33
-0:19
25K
15.53 mi13:35:142:18:348:5521:30
8:52
+0:19
30K
18.64 mi14:04:272:47:479:0029:13
9:24
+0:32
20M
20.00 mi14:16:563:00:169:0112:29
9:11
-0:13
21M
21.00 mi14:26:433:10:039:039:47
9:47
+0:36
35K
21.75 mi14:32:573:16:179:026:14
8:20
-1:27
23M
23.00 mi14:44:233:27:439:0211:26
9:08
+0:48
24M
24.00 mi14:52:453:36:059:008:22
8:22
-0:46
40K
24.85 mi15:00:133:43:339:007:28
8:44
+0:22
25.2M
25.20 mi15:03:263:46:469:003:13
9:20
+0:36
Finish
26.22 mi15:12:293:55:499:009:03
8:53
-0:27

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

8:20 /mi

Average Pace

9:00 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:07

77% of race

Time at Steady Pace

54:42

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:00 /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 mi11:44:4128:019:0128:01
9:01
#20535
10K
6.21 mi12:12:2755:478:5927:46
8:56
#20546
15K
9.32 mi12:40:201:23:408:5927:53
8:58
#20464
20K
12.43 mi13:07:541:51:148:5727:34
8:52
#20116
Half
13.11 mi13:13:441:57:048:565:50
8:33
#20030
25K
15.53 mi13:35:142:18:348:5521:30
8:52
#19725
30K
18.64 mi14:04:272:47:479:0029:13
9:24
#19594
20M
20.00 mi14:16:563:00:169:0112:29
9:11
#19428
21M
21.00 mi14:26:433:10:039:039:47
9:47
#19287
35K
21.75 mi14:32:573:16:179:026:14
8:20
#19131
23M
23.00 mi14:44:233:27:439:0211:26
9:08
#18983
24M
24.00 mi14:52:453:36:059:008:22
8:22
#18761
40K
24.85 mi15:00:133:43:339:007:28
8:44
#18629
25.2M
25.20 mi15:03:263:46:469:003:13
9:20
#18554
Finish
26.22 mi15:12:293:55:499:009:03
8:53
#18524
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi205358133813320390(Top 77%)7892(Top 69%)7892(Top 162%)
10K6.21 mi3.10 mi20546-118060+738060+7320632(Top 77%)8052(Top 70%)8052(Top 165%)
15K9.32 mi3.11 mi20464+827996+647996+6420390(Top 77%)7892(Top 69%)7892(Top 162%)
20K12.43 mi3.11 mi20116+3487779+2177779+21719085(Top 72%)7139(Top 62%)7139(Top 146%)
Half13.11 mi0.68 mi20030+867741+387741+3818072(Top 68%)6536(Top 57%)6536(Top 134%)
25K15.53 mi2.42 mi19725+3057556+1857556+18518317(Top 69%)6738(Top 59%)6738(Top 138%)
30K18.64 mi3.11 mi19594+1317487+697487+6919056(Top 72%)7226(Top 63%)7226(Top 148%)
20M20.00 mi1.36 mi19428+1667406+817406+8117503(Top 66%)6456(Top 57%)6456(Top 132%)
21M21.00 mi1.00 mi19287+1417334+727334+7217221(Top 65%)6321(Top 55%)6321(Top 129%)
35K21.75 mi0.75 mi19131+1567248+867248+8614366(Top 54%)4783(Top 42%)4783(Top 98%)
23M23.00 mi1.25 mi18983+1487171+777171+7716722(Top 63%)6153(Top 54%)6153(Top 126%)
24M24.00 mi1.00 mi18761+2227062+1097062+10913702(Top 51%)4521(Top 40%)4521(Top 93%)
40K24.85 mi0.85 mi18629+1326996+666996+6614766(Top 55%)5179(Top 45%)5179(Top 106%)
25.2M25.20 mi0.35 mi18554+756959+376959+3714444(Top 54%)5014(Top 44%)5014(Top 103%)
Finish26.22 mi1.02 mi18524+306951+86951+817442(Top 66%)6616(Top 58%)6616(Top 135%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20390

Females

7892

F18-39

7892

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20632

Females

8052

F18-39

8052

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20390

Females

7892

F18-39

7892

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19085

Females

7139

F18-39

7139

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18072

Females

6536

F18-39

6536

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18317

Females

6738

F18-39

6738

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

19056

Females

7226

F18-39

7226

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17503

Females

6456

F18-39

6456

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17221

Females

6321

F18-39

6321

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14366

Females

4783

F18-39

4783

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16722

Females

6153

F18-39

6153

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13702

Females

4521

F18-39

4521

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14766

Females

5179

F18-39

5179

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14444

Females

5014

F18-39

5014

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

17442

Females

6616

F18-39

6616

Passing Analysis

Category:
Athletes Passed
2701
Passed By
690
Net Change
+2011
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20535
5K → 10K299310-11#20535#20546
10K → 15K211129+82#20546#20464
15K → 20K38335+348#20464#20116
20K → Half915+86#20116#20030
Half → 25K32217+305#20030#19725
25K → 30K22493+131#19725#19594
30K → 20M18115+166#19594#19428
20M → 21M16524+141#19428#19287
21M → 35K1560+156#19287#19131
35K → 23M16416+148#19131#18983
23M → 24M2231+222#18983#18761
24M → 40K1342+132#18761#18629
40K → 25.2M794+75#18629#18554
25.2M → Finish6939+30#18554#18524
TOTALS2701690+2011
📊

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