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BOSTON MARATHON 2023

Jessica O'reilly

Bib: 12834•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 27%
Division (F18-39)
#0 / 4884
Top 44%
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
7:14/mi
22:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
45:16
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:08:48
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:33:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:38:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
1:59:23
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:26:21
↑ 181↓ 1480.2%
20M
8:26/mi
2:37:49
↑ 64↓ 500.2%
21M
8:42/mi
2:46:31
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:52:30
↑ 17↓ 861.7%
23M
8:23/mi
3:03:00
↑ 23↓ 630.6%
24M
7:48/mi
3:10:48
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:17:42
↓ 200.3%
25.2M
9:14/mi
3:20:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:40/mi
3:28:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:35
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:50:07
Pace8:24 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5922:297:1422:29
7:14
-
10K
6.21 mi11:12:4645:167:1722:47
7:20
+0:06
15K
9.32 mi11:36:181:08:487:2323:32
7:34
+0:14
20K
12.43 mi12:00:411:33:117:3024:23
7:51
+0:17
Half
13.11 mi12:06:051:38:357:315:24
7:55
+0:04
25K
15.53 mi12:26:531:59:237:4120:48
8:35
+0:40
30K
18.64 mi12:53:512:26:217:5126:58
8:41
+0:06
20M
20.00 mi13:05:192:37:497:5311:28
8:26
-0:15
21M
21.00 mi13:14:012:46:317:568:42
8:42
+0:16
35K
21.75 mi13:20:002:52:307:565:59
8:00
-0:42
23M
23.00 mi13:30:303:03:007:5710:30
8:23
+0:23
24M
24.00 mi13:38:183:10:487:577:48
7:48
-0:35
40K
24.85 mi13:45:123:17:427:576:54
8:04
+0:16
25.2M
25.20 mi13:48:233:20:537:583:11
9:14
+1:10
Finish
26.22 mi13:56:123:28:427:587:49
7:40
-1:34

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

7:14 /mi

Average Pace

7:58 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:37

37% of race

Time at Steady Pace

50:28

24% of race

Time at Slower Pace

1:21:37

39% of race

Average Pace: 7:58 /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 mi10:49:5922:297:1422:29
7:14
#7737
10K
6.21 mi11:12:4645:167:1722:47
7:20
#8350
15K
9.32 mi11:36:181:08:487:2323:32
7:34
#9059
20K
12.43 mi12:00:411:33:117:3024:23
7:51
#9823
Half
13.11 mi12:06:051:38:357:315:24
7:55
#10020
25K
15.53 mi12:26:531:59:237:4120:48
8:35
#11181
30K
18.64 mi12:53:512:26:217:5126:58
8:41
#12042
20M
20.00 mi13:05:192:37:497:5311:28
8:26
#12137
21M
21.00 mi13:14:012:46:317:568:42
8:42
#12094
35K
21.75 mi13:20:002:52:307:565:59
8:00
#12095
23M
23.00 mi13:30:303:03:007:5710:30
8:23
#12100
24M
24.00 mi13:38:183:10:487:577:48
7:48
#11991
40K
24.85 mi13:45:123:17:427:576:54
8:04
#11925
25.2M
25.20 mi13:48:233:20:537:583:11
9:14
#11960
Finish
26.22 mi13:56:123:28:427:587:49
7:40
#11862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi773792592510809(Top 41%)2239(Top 20%)2239(Top 46%)
10K6.21 mi3.10 mi8350-6131160-2351160-2359130(Top 34%)1473(Top 13%)1473(Top 30%)
15K9.32 mi3.11 mi9059-7091450-2901450-29010809(Top 41%)2239(Top 20%)2239(Top 46%)
20K12.43 mi3.11 mi9823-7641765-3151765-31512166(Top 46%)3068(Top 27%)3068(Top 63%)
Half13.11 mi0.68 mi10020-1971844-791844-7913701(Top 51%)3888(Top 34%)3888(Top 80%)
25K15.53 mi2.42 mi11181-11612457-6132457-61316684(Top 63%)5818(Top 51%)5818(Top 119%)
30K18.64 mi3.11 mi12042-8612996-5392996-53915394(Top 58%)5160(Top 45%)5160(Top 106%)
20M20.00 mi1.36 mi12137-953074-783074-7813254(Top 50%)3986(Top 35%)3986(Top 82%)
21M21.00 mi1.00 mi12094+433064+103064+1011686(Top 44%)3237(Top 28%)3237(Top 66%)
35K21.75 mi0.75 mi12095-13087-233087-2312131(Top 46%)3494(Top 31%)3494(Top 72%)
23M23.00 mi1.25 mi12100-53111-243111-2412504(Top 47%)3794(Top 33%)3794(Top 78%)
24M24.00 mi1.00 mi11991+1093072+393072+399838(Top 37%)2523(Top 22%)2523(Top 52%)
40K24.85 mi0.85 mi11925+663055+173055+1710547(Top 40%)2909(Top 25%)2909(Top 60%)
25.2M25.20 mi0.35 mi11960-353081-263081-2613821(Top 52%)4632(Top 41%)4632(Top 95%)
Finish26.22 mi1.02 mi11862+983045+363045+369815(Top 37%)2620(Top 23%)2620(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10809

Females

2239

F18-39

2239

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9130

Females

1473

F18-39

1473

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10809

Females

2239

F18-39

2239

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12166

Females

3068

F18-39

3068

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13701

Females

3888

F18-39

3888

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16684

Females

5818

F18-39

5818

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15394

Females

5160

F18-39

5160

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13254

Females

3986

F18-39

3986

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11686

Females

3237

F18-39

3237

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12131

Females

3494

F18-39

3494

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12504

Females

3794

F18-39

3794

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9838

Females

2523

F18-39

2523

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10547

Females

2909

F18-39

2909

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13821

Females

4632

F18-39

4632

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9815

Females

2620

F18-39

2620

Passing Analysis

Category:
Athletes Passed
819
Passed By
4943
Net Change
-4125
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7737
5K → 10K41654-613#7737#8350
10K → 15K22731-709#8350#9059
15K → 20K24788-764#9059#9823
20K → Half1197-197#9823#10020
Half → 25K121173-1161#10020#11181
25K → 30K31892-861#11181#12042
30K → 20M77172-95#12042#12137
20M → 21M10360+43#12137#12094
21M → 35K5152-1#12094#12095
35K → 23M8287-5#12095#12100
23M → 24M13223+109#12100#11991
24M → 40K9731+66#11991#11925
40K → 25.2M2257-35#11925#11960
25.2M → Finish12426+98#11960#11862
TOTALS8194943-4125
📊

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