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BOSTON MARATHON 2023

Laura O'Reilly

Bib: 24250•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 48%
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
9:06/mi
28:16
↑ 97↓ 3451.5%
10K· 6.21 mi
9:07/mi
56:36
↑ 79↓ 1380.4%
15K· 9.32 mi
9:14/mi
1:25:17
↑ 67↓ 78
20K· 12.43 mi
9:31/mi
1:54:52
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:01:13
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:24:52
↑ 66↓ 880.2%
30K· 18.64 mi
9:51/mi
2:55:27
↑ 181↓ 1480.2%
20M
9:58/mi
3:08:59
↑ 64↓ 500.2%
21M
10:28/mi
3:19:27
↑ 106↓ 241.6%
35K· 21.75 mi
9:32/mi
3:26:35
↑ 17↓ 861.7%
23M
10:24/mi
3:39:36
↑ 23↓ 630.6%
24M
9:42/mi
3:49:18
↓ 821.3%
40K· 24.85 mi
10:13/mi
3:58:02
↓ 200.3%
25.2M
11:50/mi
4:02:07
↑ 13↓ 160.2%
Finish· 26.22 mi
9:44/mi
4:12:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:13
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:10:49
Pace9:59 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3028:169:0628:16
9:06
-
10K
6.21 mi12:11:5056:369:0728:20
9:07
+0:01
15K
9.32 mi12:40:311:25:179:0928:41
9:14
+0:07
20K
12.43 mi13:10:061:54:529:1529:35
9:31
+0:17
Half
13.11 mi13:16:272:01:139:156:21
9:18
-0:13
25K
15.53 mi13:40:062:24:529:2023:39
9:45
+0:27
30K
18.64 mi14:10:412:55:279:2530:35
9:51
+0:06
20M
20.00 mi14:24:133:08:599:2713:32
9:58
+0:07
21M
21.00 mi14:34:413:19:279:3010:28
10:28
+0:30
35K
21.75 mi14:41:493:26:359:307:08
9:32
-0:56
23M
23.00 mi14:54:503:39:369:3313:01
10:24
+0:52
24M
24.00 mi15:04:323:49:189:339:42
9:42
-0:42
40K
24.85 mi15:13:163:58:029:358:44
10:13
+0:31
25.2M
25.20 mi15:17:214:02:079:364:05
11:50
+1:37
Finish
26.22 mi15:27:164:12:029:379:55
9:44
-2:06

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

9:06 /mi

Average Pace

9:37 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:38

36% of race

Time at Steady Pace

2:04:06

49% of race

Time at Slower Pace

36:18

14% of race

Average Pace: 9:37 /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 mi11:43:3028:169:0628:16
9:06
#20869
10K
6.21 mi12:11:5056:369:0728:20
9:07
#21103
15K
9.32 mi12:40:311:25:179:0928:41
9:14
#21209
20K
12.43 mi13:10:061:54:529:1529:35
9:31
#21327
Half
13.11 mi13:16:272:01:139:156:21
9:18
#21329
25K
15.53 mi13:40:062:24:529:2023:39
9:45
#21364
30K
18.64 mi14:10:412:55:279:2530:35
9:51
#21213
20M
20.00 mi14:24:133:08:599:2713:32
9:58
#21118
21M
21.00 mi14:34:413:19:279:3010:28
10:28
#21022
35K
21.75 mi14:41:493:26:359:307:08
9:32
#20964
23M
23.00 mi14:54:503:39:369:3313:01
10:24
#20954
24M
24.00 mi15:04:323:49:189:339:42
9:42
#20894
40K
24.85 mi15:13:163:58:029:358:44
10:13
#20867
25.2M
25.20 mi15:17:214:02:079:364:05
11:50
#20895
Finish
26.22 mi15:27:164:12:029:379:55
9:44
#20877
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi208698306830621417(Top 80%)8458(Top 74%)8458(Top 1605%)
10K6.21 mi3.10 mi21103-2348371-658371-6521359(Top 80%)8474(Top 74%)8474(Top 1608%)
15K9.32 mi3.11 mi21209-1068392-218392-2121417(Top 80%)8458(Top 74%)8458(Top 1605%)
20K12.43 mi3.11 mi21327-1188450-588450-5821626(Top 81%)8586(Top 75%)8586(Top 1629%)
Half13.11 mi0.68 mi21329-28449+18449+121558(Top 81%)8544(Top 75%)8544(Top 1621%)
25K15.53 mi2.42 mi21364-358469-208469-2021619(Top 81%)8625(Top 76%)8625(Top 1637%)
30K18.64 mi3.11 mi21213+1518399+708399+7020589(Top 77%)8105(Top 71%)8105(Top 1538%)
20M20.00 mi1.36 mi21118+958368+318368+3120380(Top 77%)8070(Top 71%)8070(Top 1531%)
21M21.00 mi1.00 mi21022+968326+428326+4219511(Top 73%)7653(Top 67%)7653(Top 1452%)
35K21.75 mi0.75 mi20964+588302+248302+2419987(Top 75%)7931(Top 69%)7931(Top 1505%)
23M23.00 mi1.25 mi20954+108316-148316-1421063(Top 79%)8558(Top 75%)8558(Top 1624%)
24M24.00 mi1.00 mi20894+608286+308286+3019919(Top 75%)7931(Top 69%)7931(Top 1505%)
40K24.85 mi0.85 mi20867+278279+78279+720536(Top 77%)8352(Top 73%)8352(Top 1585%)
25.2M25.20 mi0.35 mi20895-288299-208299-2022226(Top 83%)9246(Top 81%)9246(Top 1754%)
Finish26.22 mi1.02 mi20877+188304-58304-520920(Top 79%)8512(Top 75%)8512(Top 1615%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21417

Females

8458

F60-64

8458

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21359

Females

8474

F60-64

8474

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21417

Females

8458

F60-64

8458

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21626

Females

8586

F60-64

8586

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21558

Females

8544

F60-64

8544

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21619

Females

8625

F60-64

8625

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20589

Females

8105

F60-64

8105

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20380

Females

8070

F60-64

8070

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19511

Females

7653

F60-64

7653

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19987

Females

7931

F60-64

7931

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

21063

Females

8558

F60-64

8558

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19919

Females

7931

F60-64

7931

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20536

Females

8352

F60-64

8352

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22226

Females

9246

F60-64

9246

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

20920

Females

8512

F60-64

8512

Passing Analysis

Category:
Athletes Passed
1320
Passed By
1328
Net Change
-8
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20869
5K → 10K196430-234#20869#21103
10K → 15K112218-106#21103#21209
15K → 20K100218-118#21209#21327
20K → Half2729-2#21327#21329
Half → 25K91126-35#21329#21364
25K → 30K21665+151#21364#21213
30K → 20M11015+95#21213#21118
20M → 21M12327+96#21118#21022
21M → 35K7113+58#21022#20964
35K → 23M7666+10#20964#20954
23M → 24M8727+60#20954#20894
24M → 40K4720+27#20894#20867
40K → 25.2M735-28#20867#20895
25.2M → Finish5739+18#20895#20877
TOTALS13201328-8
📊

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