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BOSTON MARATHON 2023

Carolyn Olsen

Bib: 23306•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:02
Rank: #18901
Start → 5K
27:02 | 8:42/mi
10K· 6.21 mi
53:18
Rank: #18399 (+502)
5K → 10K
26:16 | 8:27/mi
15K· 9.32 mi
1:19:55
Rank: #18324 (+75)
10K → 15K
26:37 | 8:34/mi
20K· 12.43 mi
1:46:46
Rank: #18158 (+166)
15K → 20K
26:51 | 8:39/mi
Half· 13.11 mi
1:52:38
Rank: #18157 (+1)
20K → Half
5:52 | 8:36/mi
25K· 15.53 mi
2:14:09
Rank: #18178 (-21)
Half → 25K
21:31 | 8:52/mi
30K· 18.64 mi
2:43:22
Rank: #18362 (-184)
25K → 30K
29:13 | 9:24/mi
20M
2:55:41
Rank: #18240 (+122)
30K → 20M
12:19 | 9:04/mi
21M
3:05:28
Rank: #18167 (+73)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
3:12:03
Rank: #18114 (+53)
21M → 35K
6:35 | 8:48/mi
23M
3:23:30
Rank: #18039 (+75)
35K → 23M
11:27 | 9:09/mi
24M
3:32:20
Rank: #17966 (+73)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:40:02
Rank: #17910 (+56)
24M → 40K
7:42 | 9:00/mi
25.2M
3:43:29
Rank: #17898 (+12)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:52:33
Rank: #17897 (+1)
25.2M → Finish
9:04 | 8:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:38
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:59:55
Pace9:09 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2927:028:4227:02
8:42
-
10K
6.21 mi11:49:4553:188:3526:16
8:27
-0:15
15K
9.32 mi12:16:221:19:558:3426:37
8:34
+0:07
20K
12.43 mi12:43:131:46:468:3526:51
8:39
+0:05
Half
13.11 mi12:49:051:52:388:355:52
8:36
-0:03
25K
15.53 mi13:10:362:14:098:3821:31
8:52
+0:16
30K
18.64 mi13:39:492:43:228:4629:13
9:24
+0:32
20M
20.00 mi13:52:082:55:418:4712:19
9:04
-0:20
21M
21.00 mi14:01:553:05:288:509:47
9:47
+0:43
35K
21.75 mi14:08:303:12:038:506:35
8:48
-0:59
23M
23.00 mi14:19:573:23:308:5111:27
9:09
+0:21
24M
24.00 mi14:28:473:32:208:518:50
8:50
-0:19
40K
24.85 mi14:36:293:40:028:517:42
9:00
+0:10
25.2M
25.20 mi14:39:563:43:298:523:27
10:00
+1:00
Finish
26.22 mi14:49:003:52:338:539:04
8:54
-1:06

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

8:27 /mi

Average Pace

8:53 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:06

82% of race

Time at Steady Pace

39:00

17% of race

Time at Slower Pace

3:27

1% of race

Average Pace: 8:52 /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 mi11:23:2927:028:4227:02
8:42
#18901
10K
6.21 mi11:49:4553:188:3526:16
8:27
#18399
15K
9.32 mi12:16:221:19:558:3426:37
8:34
#18324
20K
12.43 mi12:43:131:46:468:3526:51
8:39
#18158
Half
13.11 mi12:49:051:52:388:355:52
8:36
#18157
25K
15.53 mi13:10:362:14:098:3821:31
8:52
#18178
30K
18.64 mi13:39:492:43:228:4629:13
9:24
#18362
20M
20.00 mi13:52:082:55:418:4712:19
9:04
#18240
21M
21.00 mi14:01:553:05:288:509:47
9:47
#18167
35K
21.75 mi14:08:303:12:038:506:35
8:48
#18114
23M
23.00 mi14:19:573:23:308:5111:27
9:09
#18039
24M
24.00 mi14:28:473:32:208:518:50
8:50
#17966
40K
24.85 mi14:36:293:40:028:517:42
9:00
#17910
25.2M
25.20 mi14:39:563:43:298:523:27
10:00
#17898
Finish
26.22 mi14:49:003:52:338:539:04
8:54
#17897
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi189017138713818249(Top 69%)6643(Top 58%)6643(Top 815%)
10K6.21 mi3.10 mi18399+5026761+3776761+37717970(Top 68%)6459(Top 57%)6459(Top 793%)
15K9.32 mi3.11 mi18324+756705+566705+5618249(Top 69%)6643(Top 58%)6643(Top 815%)
20K12.43 mi3.11 mi18158+1666604+1016604+10117762(Top 67%)6380(Top 56%)6380(Top 783%)
Half13.11 mi0.68 mi18157+16607-36607-318359(Top 69%)6694(Top 59%)6694(Top 821%)
25K15.53 mi2.42 mi18178-216638-316638-3118339(Top 69%)6748(Top 59%)6748(Top 828%)
30K18.64 mi3.11 mi18362-1846778-1406778-14019053(Top 72%)7223(Top 63%)7223(Top 886%)
20M20.00 mi1.36 mi18240+1226725+536725+5316883(Top 63%)6087(Top 53%)6087(Top 747%)
21M21.00 mi1.00 mi18167+736700+256700+2517216(Top 65%)6316(Top 55%)6316(Top 775%)
35K21.75 mi0.75 mi18114+536668+326668+3216975(Top 64%)6269(Top 55%)6269(Top 769%)
23M23.00 mi1.25 mi18039+756631+376631+3716793(Top 63%)6185(Top 54%)6185(Top 759%)
24M24.00 mi1.00 mi17966+736604+276604+2716423(Top 62%)6043(Top 53%)6043(Top 741%)
40K24.85 mi0.85 mi17910+566582+226582+2216210(Top 61%)5981(Top 52%)5981(Top 734%)
25.2M25.20 mi0.35 mi17898+126573+96573+917441(Top 66%)6674(Top 58%)6674(Top 819%)
Finish26.22 mi1.02 mi17897+16589-166589-1617501(Top 66%)6652(Top 58%)6652(Top 816%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18249

Females

6643

F55-59

6643

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

17970

Females

6459

F55-59

6459

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18249

Females

6643

F55-59

6643

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17762

Females

6380

F55-59

6380

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

18359

Females

6694

F55-59

6694

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

18339

Females

6748

F55-59

6748

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19053

Females

7223

F55-59

7223

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16883

Females

6087

F55-59

6087

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17216

Females

6316

F55-59

6316

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16975

Females

6269

F55-59

6269

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16793

Females

6185

F55-59

6185

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16423

Females

6043

F55-59

6043

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16210

Females

5981

F55-59

5981

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17441

Females

6674

F55-59

6674

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17501

Females

6652

F55-59

6652

Passing Analysis

Category:
Athletes Passed
2155
Passed By
1151
Net Change
+1004
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18901
5K → 10K680178+502#18901#18399
10K → 15K219144+75#18399#18324
15K → 20K24276+166#18324#18158
20K → Half2827+1#18158#18157
Half → 25K120141-21#18157#18178
25K → 30K126310-184#18178#18362
30K → 20M15331+122#18362#18240
20M → 21M14370+73#18240#18167
21M → 35K7724+53#18167#18114
35K → 23M10732+75#18114#18039
23M → 24M9219+73#18039#17966
24M → 40K8125+56#17966#17910
40K → 25.2M3119+12#17910#17898
25.2M → Finish5655+1#17898#17897
TOTALS21551151+1004
📊

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