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BOSTON MARATHON 2023

Rebecca O'toole

Bib: 18892•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Masters (Masters Women)
#0 / 6539
Top 35%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:05
Rank: #14529
Start → 5K
25:05 | 8:04/mi
10K· 6.21 mi
49:59
Rank: #14705 (-176)
5K → 10K
24:54 | 8:01/mi
15K· 9.32 mi
1:14:52
Rank: #14599 (+106)
10K → 15K
24:53 | 8:01/mi
20K· 12.43 mi
1:40:13
Rank: #14597 (+2)
15K → 20K
25:21 | 8:10/mi
Half· 13.11 mi
1:45:47
Rank: #14645 (-48)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:05:47
Rank: #14637 (+8)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:32:50
Rank: #14809 (-172)
25K → 30K
27:03 | 8:42/mi
20M
2:44:55
Rank: #14883 (-74)
30K → 20M
12:05 | 8:54/mi
21M
2:54:44
Rank: #15031 (-148)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:01:17
Rank: #15086 (-55)
21M → 35K
6:33 | 8:45/mi
23M
3:12:32
Rank: #15100 (-14)
35K → 23M
11:15 | 8:59/mi
24M
3:21:30
Rank: #15181 (-81)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:29:23
Rank: #15290 (-109)
24M → 40K
7:53 | 9:13/mi
25.2M
3:32:50
Rank: #15319 (-29)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:42:30
Rank: #15568 (-249)
25.2M → Finish
9:40 | 9:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:47
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:56:43
Pace8:54 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1025:058:0425:05
8:04
-
10K
6.21 mi11:41:0449:598:0324:54
8:01
-0:03
15K
9.32 mi12:05:571:14:528:0224:53
8:01
0:00
20K
12.43 mi12:31:181:40:138:0425:21
8:10
+0:09
Half
13.11 mi12:36:521:45:478:045:34
8:10
0:00
25K
15.53 mi12:56:522:05:478:0620:00
8:15
+0:05
30K
18.64 mi13:23:552:32:508:1227:03
8:42
+0:27
20M
20.00 mi13:36:002:44:558:1512:05
8:54
+0:12
21M
21.00 mi13:45:492:54:448:199:49
9:49
+0:55
35K
21.75 mi13:52:223:01:178:206:33
8:45
-1:04
23M
23.00 mi14:03:373:12:328:2211:15
8:59
+0:14
24M
24.00 mi14:12:353:21:308:248:58
8:58
-0:01
40K
24.85 mi14:20:283:29:238:257:53
9:13
+0:15
25.2M
25.20 mi14:23:553:32:508:273:27
10:00
+0:47
Finish
26.22 mi14:33:353:42:308:309:40
9:29
-0:31

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

8:01 /mi

Average Pace

8:30 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:47

57% of race

Time at Steady Pace

1:05:54

30% of race

Time at Slower Pace

30:49

14% of race

Average Pace: 8:29 /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 mi11:16:1025:058:0425:05
8:04
#14529
10K
6.21 mi11:41:0449:598:0324:54
8:01
#14705
15K
9.32 mi12:05:571:14:528:0224:53
8:01
#14599
20K
12.43 mi12:31:181:40:138:0425:21
8:10
#14597
Half
13.11 mi12:36:521:45:478:045:34
8:10
#14645
25K
15.53 mi12:56:522:05:478:0620:00
8:15
#14637
30K
18.64 mi13:23:552:32:508:1227:03
8:42
#14809
20M
20.00 mi13:36:002:44:558:1512:05
8:54
#14883
21M
21.00 mi13:45:492:54:448:199:49
9:49
#15031
35K
21.75 mi13:52:223:01:178:206:33
8:45
#15086
23M
23.00 mi14:03:373:12:328:2211:15
8:59
#15100
24M
24.00 mi14:12:353:21:308:248:58
8:58
#15181
40K
24.85 mi14:20:283:29:238:257:53
9:13
#15290
25.2M
25.20 mi14:23:553:32:508:273:27
10:00
#15319
Finish
26.22 mi14:33:353:42:308:309:40
9:29
#15568
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi145294347434714482(Top 54%)4374(Top 38%)4374(Top 233%)
10K6.21 mi3.10 mi14705-1764469-1224469-12214928(Top 56%)4629(Top 41%)4629(Top 246%)
15K9.32 mi3.11 mi14599+1064412+574412+5714482(Top 54%)4374(Top 38%)4374(Top 233%)
20K12.43 mi3.11 mi14597+24431-194431-1914686(Top 55%)4519(Top 40%)4519(Top 241%)
Half13.11 mi0.68 mi14645-484459-284459-2815558(Top 58%)5030(Top 44%)5030(Top 268%)
25K15.53 mi2.42 mi14637+84490-314490-3114607(Top 55%)4595(Top 40%)4595(Top 245%)
30K18.64 mi3.11 mi14809-1724626-1364626-13615550(Top 58%)5242(Top 46%)5242(Top 279%)
20M20.00 mi1.36 mi14883-744695-694695-6915977(Top 60%)5559(Top 49%)5559(Top 296%)
21M21.00 mi1.00 mi15031-1484817-1224817-12217323(Top 65%)6380(Top 56%)6380(Top 340%)
35K21.75 mi0.75 mi15086-554870-534870-5316722(Top 63%)6110(Top 53%)6110(Top 325%)
23M23.00 mi1.25 mi15100-144904-344904-3416006(Top 60%)5745(Top 50%)5745(Top 306%)
24M24.00 mi1.00 mi15181-814966-624966-6217083(Top 64%)6400(Top 56%)6400(Top 341%)
40K24.85 mi0.85 mi15290-1095054-885054-8817187(Top 65%)6499(Top 57%)6499(Top 346%)
25.2M25.20 mi0.35 mi15319-295084-305084-3017413(Top 65%)6646(Top 58%)6646(Top 354%)
Finish26.22 mi1.02 mi15568-2495246-1625246-16220065(Top 75%)8033(Top 70%)8033(Top 428%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14482

Females

4374

F40-44

4374

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14928

Females

4629

F40-44

4629

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14482

Females

4374

F40-44

4374

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14686

Females

4519

F40-44

4519

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

15558

Females

5030

F40-44

5030

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14607

Females

4595

F40-44

4595

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15550

Females

5242

F40-44

5242

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15977

Females

5559

F40-44

5559

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17323

Females

6380

F40-44

6380

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16722

Females

6110

F40-44

6110

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16006

Females

5745

F40-44

5745

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17083

Females

6400

F40-44

6400

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17187

Females

6499

F40-44

6499

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17413

Females

6646

F40-44

6646

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

20065

Females

8033

F40-44

8033

Passing Analysis

Category:
Athletes Passed
1272
Passed By
2311
Net Change
-1039
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14529
5K → 10K220396-176#14529#14705
10K → 15K249143+106#14705#14599
15K → 20K198196+2#14599#14597
20K → Half1462-48#14597#14645
Half → 25K150142+8#14645#14637
25K → 30K111283-172#14637#14809
30K → 20M59133-74#14809#14883
20M → 21M48196-148#14883#15031
21M → 35K3186-55#15031#15086
35K → 23M7387-14#15086#15100
23M → 24M42123-81#15100#15181
24M → 40K36145-109#15181#15290
40K → 25.2M2049-29#15290#15319
25.2M → Finish21270-249#15319#15568
TOTALS12722311-1039
📊

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