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BOSTON MARATHON 2023

Kathryne O'Hollaren

Bib: 17904•F

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
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
7:59/mi
24:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:46
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:37:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:43:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:03:35
↑ 66↓ 880.2%
30K· 18.64 mi
9:01/mi
2:31:35
↑ 181↓ 1480.2%
20M
9:23/mi
2:44:20
↑ 64↓ 500.2%
21M
10:09/mi
2:54:29
↑ 106↓ 241.6%
35K· 21.75 mi
10:23/mi
3:02:15
↑ 17↓ 861.7%
23M
8:40/mi
3:13:06
↑ 23↓ 630.6%
24M
9:20/mi
3:22:26
↓ 821.3%
40K· 24.85 mi
9:14/mi
3:30:20
↓ 200.3%
25.2M
9:14/mi
3:33:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:42:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:26
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:58:46
Pace9:04 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5524:487:5924:48
7:59
-
10K
6.21 mi11:40:5248:457:5123:57
7:43
-0:16
15K
9.32 mi12:04:531:12:467:4824:01
7:44
+0:01
20K
12.43 mi12:30:061:37:597:5325:13
8:07
+0:23
Half
13.11 mi12:35:331:43:267:535:27
7:59
-0:08
25K
15.53 mi12:55:422:03:357:5720:09
8:19
+0:20
30K
18.64 mi13:23:422:31:358:0828:00
9:01
+0:42
20M
20.00 mi13:36:272:44:208:1312:45
9:23
+0:22
21M
21.00 mi13:46:362:54:298:1910:09
10:09
+0:46
35K
21.75 mi13:54:223:02:158:237:46
10:23
+0:14
23M
23.00 mi14:05:133:13:068:2410:51
8:40
-1:43
24M
24.00 mi14:14:333:22:268:269:20
9:20
+0:40
40K
24.85 mi14:22:273:30:208:287:54
9:14
-0:06
25.2M
25.20 mi14:25:383:33:318:283:11
9:14
0:00
Finish
26.22 mi14:34:193:42:128:298:41
8:31
-0:43

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

7:43 /mi

Average Pace

8:29 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:26

47% of race

Time at Steady Pace

1:07:41

30% of race

Time at Slower Pace

51:05

23% of race

Average Pace: 8:28 /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 mi11:16:5524:487:5924:48
7:59
#13909
10K
6.21 mi11:40:5248:457:5123:57
7:43
#13160
15K
9.32 mi12:04:531:12:467:4824:01
7:44
#12761
20K
12.43 mi12:30:061:37:597:5325:13
8:07
#13177
Half
13.11 mi12:35:331:43:267:535:27
7:59
#13238
25K
15.53 mi12:55:422:03:357:5720:09
8:19
#13517
30K
18.64 mi13:23:422:31:358:0828:00
9:01
#14345
20M
20.00 mi13:36:272:44:208:1312:45
9:23
#14675
21M
21.00 mi13:46:362:54:298:1910:09
10:09
#14947
35K
21.75 mi13:54:223:02:158:237:46
10:23
#15351
23M
23.00 mi14:05:133:13:068:2410:51
8:40
#15264
24M
24.00 mi14:14:333:22:268:269:20
9:20
#15458
40K
24.85 mi14:22:273:30:208:287:54
9:14
#15530
25.2M
25.20 mi14:25:383:33:318:283:11
9:14
#15505
Finish
26.22 mi14:34:193:42:128:298:41
8:31
#15493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi139093973397312133(Top 46%)2975(Top 26%)2975(Top 61%)
10K6.21 mi3.10 mi13160+7493544+4293544+42912357(Top 46%)3071(Top 27%)3071(Top 63%)
15K9.32 mi3.11 mi12761+3993317+2273317+22712133(Top 46%)2975(Top 26%)2975(Top 61%)
20K12.43 mi3.11 mi13177-4163599-2823599-28214351(Top 54%)4322(Top 38%)4322(Top 88%)
Half13.11 mi0.68 mi13238-613627-283627-2814384(Top 54%)4328(Top 38%)4328(Top 89%)
25K15.53 mi2.42 mi13517-2793819-1923819-19215043(Top 57%)4871(Top 43%)4871(Top 100%)
30K18.64 mi3.11 mi14345-8284365-5464365-54617242(Top 65%)6206(Top 54%)6206(Top 127%)
20M20.00 mi1.36 mi14675-3304565-2004565-20018386(Top 69%)6954(Top 61%)6954(Top 142%)
21M21.00 mi1.00 mi14947-2724760-1954760-19518549(Top 70%)7077(Top 62%)7077(Top 145%)
35K21.75 mi0.75 mi15351-4045037-2775037-27722162(Top 83%)9139(Top 80%)9139(Top 187%)
23M23.00 mi1.25 mi15264+875003+345003+3414199(Top 53%)4729(Top 41%)4729(Top 97%)
24M24.00 mi1.00 mi15458-1945150-1475150-14718604(Top 70%)7221(Top 63%)7221(Top 148%)
40K24.85 mi0.85 mi15530-725207-575207-5717279(Top 65%)6551(Top 57%)6551(Top 134%)
25.2M25.20 mi0.35 mi15505+255196+115196+1113886(Top 52%)4697(Top 41%)4697(Top 96%)
Finish26.22 mi1.02 mi15493+125202-65202-615566(Top 58%)5571(Top 49%)5571(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12133

Females

2975

F18-39

2975

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12357

Females

3071

F18-39

3071

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12133

Females

2975

F18-39

2975

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14351

Females

4322

F18-39

4322

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14384

Females

4328

F18-39

4328

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15043

Females

4871

F18-39

4871

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17242

Females

6206

F18-39

6206

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18386

Females

6954

F18-39

6954

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18549

Females

7077

F18-39

7077

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

22162

Females

9139

F18-39

9139

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14199

Females

4729

F18-39

4729

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18604

Females

7221

F18-39

7221

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17279

Females

6551

F18-39

6551

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13886

Females

4697

F18-39

4697

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15566

Females

5571

F18-39

5571

Passing Analysis

Category:
Athletes Passed
1876
Passed By
3460
Net Change
-1584
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13909
5K → 10K83182+749#13909#13160
10K → 15K46364+399#13160#12761
15K → 20K76492-416#12761#13177
20K → Half1778-61#13177#13238
Half → 25K72351-279#13238#13517
25K → 30K45873-828#13517#14345
30K → 20M24354-330#14345#14675
20M → 21M25297-272#14675#14947
21M → 35K5409-404#14947#15351
35K → 23M13346+87#15351#15264
23M → 24M30224-194#15264#15458
24M → 40K37109-72#15458#15530
40K → 25.2M4015+25#15530#15505
25.2M → Finish7866+12#15505#15493
TOTALS18763460-1584
📊

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