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BOSTON MARATHON 2023

Lorena Choy

Bib: 20919•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 45%
Masters (Masters Women)
#0 / 6539
Top 33%
Division (F45-49)
#0 / 1817
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:29
Rank: #17716
Start → 5K
26:29 | 8:31/mi
10K· 6.21 mi
51:23
Rank: #16294 (+1422)
5K → 10K
24:54 | 8:01/mi
15K· 9.32 mi
1:16:06
Rank: #15585 (+709)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:41:22
Rank: #15302 (+283)
15K → 20K
25:16 | 8:08/mi
Half· 13.11 mi
1:46:48
Rank: #15231 (+71)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:06:48
Rank: #15086 (+145)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:33:55
Rank: #15177 (-91)
25K → 30K
27:07 | 8:44/mi
20M
2:46:00
Rank: #15232 (-55)
30K → 20M
12:05 | 8:54/mi
21M
2:55:31
Rank: #15260 (-28)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
3:01:43
Rank: #15190 (+70)
21M → 35K
6:12 | 8:17/mi
23M
3:12:57
Rank: #15219 (-29)
35K → 23M
11:14 | 8:58/mi
24M
3:21:49
Rank: #15276 (-57)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:29:22
Rank: #15284 (-8)
24M → 40K
7:33 | 8:50/mi
25.2M
3:32:42
Rank: #15296 (-12)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:41:36
Rank: #15339 (-43)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:48
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:54:48
Pace8:45 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1726:298:3126:29
8:31
-
10K
6.21 mi11:44:1151:238:1624:54
8:01
-0:30
15K
9.32 mi12:08:541:16:068:1024:43
7:57
-0:04
20K
12.43 mi12:34:101:41:228:0925:16
8:08
+0:11
Half
13.11 mi12:39:361:46:488:095:26
7:58
-0:10
25K
15.53 mi12:59:362:06:488:1020:00
8:15
+0:17
30K
18.64 mi13:26:432:33:558:1527:07
8:44
+0:29
20M
20.00 mi13:38:482:46:008:1812:05
8:54
+0:10
21M
21.00 mi13:48:192:55:318:219:31
9:31
+0:37
35K
21.75 mi13:54:313:01:438:216:12
8:17
-1:14
23M
23.00 mi14:05:453:12:578:2311:14
8:58
+0:41
24M
24.00 mi14:14:373:21:498:258:52
8:52
-0:06
40K
24.85 mi14:22:103:29:228:257:33
8:50
-0:02
25.2M
25.20 mi14:25:303:32:428:263:20
9:40
+0:50
Finish
26.22 mi14:34:243:41:368:278:54
8:44
-0:56

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

7:57 /mi

Average Pace

8:27 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:31

48% of race

Time at Steady Pace

1:42:14

46% of race

Time at Slower Pace

12:51

6% of race

Average Pace: 8:27 /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 mi11:19:1726:298:3126:29
8:31
#17716
10K
6.21 mi11:44:1151:238:1624:54
8:01
#16294
15K
9.32 mi12:08:541:16:068:1024:43
7:57
#15585
20K
12.43 mi12:34:101:41:228:0925:16
8:08
#15302
Half
13.11 mi12:39:361:46:488:095:26
7:58
#15231
25K
15.53 mi12:59:362:06:488:1020:00
8:15
#15086
30K
18.64 mi13:26:432:33:558:1527:07
8:44
#15177
20M
20.00 mi13:38:482:46:008:1812:05
8:54
#15232
21M
21.00 mi13:48:192:55:318:219:31
9:31
#15260
35K
21.75 mi13:54:313:01:438:216:12
8:17
#15190
23M
23.00 mi14:05:453:12:578:2311:14
8:58
#15219
24M
24.00 mi14:14:373:21:498:258:52
8:52
#15276
40K
24.85 mi14:22:103:29:228:257:33
8:50
#15284
25.2M
25.20 mi14:25:303:32:428:263:20
9:40
#15296
Finish
26.22 mi14:34:243:41:368:278:54
8:44
#15339
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi177166379637914048(Top 53%)4117(Top 36%)4117(Top 227%)
10K6.21 mi3.10 mi16294+14225455+9245455+92414927(Top 56%)4628(Top 41%)4628(Top 255%)
15K9.32 mi3.11 mi15585+7095029+4265029+42614048(Top 53%)4117(Top 36%)4117(Top 227%)
20K12.43 mi3.11 mi15302+2834874+1554874+15514477(Top 54%)4390(Top 38%)4390(Top 242%)
Half13.11 mi0.68 mi15231+714831+434831+4314170(Top 53%)4201(Top 37%)4201(Top 231%)
25K15.53 mi2.42 mi15086+1454763+684763+6814603(Top 55%)4591(Top 40%)4591(Top 253%)
30K18.64 mi3.11 mi15177-914870-1074870-10715664(Top 59%)5308(Top 46%)5308(Top 292%)
20M20.00 mi1.36 mi15232-554930-604930-6015975(Top 60%)5557(Top 49%)5557(Top 306%)
21M21.00 mi1.00 mi15260-284970-404970-4016050(Top 60%)5657(Top 50%)5657(Top 311%)
35K21.75 mi0.75 mi15190+704942+284942+2814067(Top 53%)4603(Top 40%)4603(Top 253%)
23M23.00 mi1.25 mi15219-294978-364978-3615926(Top 60%)5696(Top 50%)5696(Top 313%)
24M24.00 mi1.00 mi15276-575028-505028-5016596(Top 62%)6126(Top 54%)6126(Top 337%)
40K24.85 mi0.85 mi15284-85048-205048-2015267(Top 57%)5449(Top 48%)5449(Top 300%)
25.2M25.20 mi0.35 mi15296-125068-205068-2015987(Top 60%)5851(Top 51%)5851(Top 322%)
Finish26.22 mi1.02 mi15339-435109-415109-4116677(Top 63%)6190(Top 54%)6190(Top 341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14048

Females

4117

F45-49

4117

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14927

Females

4628

F45-49

4628

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14048

Females

4117

F45-49

4117

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14477

Females

4390

F45-49

4390

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14170

Females

4201

F45-49

4201

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14603

Females

4591

F45-49

4591

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15664

Females

5308

F45-49

5308

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15975

Females

5557

F45-49

5557

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16050

Females

5657

F45-49

5657

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14067

Females

4603

F45-49

4603

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15926

Females

5696

F45-49

5696

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16596

Females

6126

F45-49

6126

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15267

Females

5449

F45-49

5449

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15987

Females

5851

F45-49

5851

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16677

Females

6190

F45-49

6190

Passing Analysis

Category:
Athletes Passed
3442
Passed By
1065
Net Change
+2377
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17716
5K → 10K146341+1422#17716#16294
10K → 15K73324+709#16294#15585
15K → 20K33350+283#15585#15302
20K → Half787+71#15302#15231
Half → 25K20661+145#15231#15086
25K → 30K148239-91#15086#15177
30K → 20M65120-55#15177#15232
20M → 21M72100-28#15232#15260
21M → 35K8313+70#15260#15190
35K → 23M6897-29#15190#15219
23M → 24M54111-57#15219#15276
24M → 40K6068-8#15276#15284
40K → 25.2M2941-12#15284#15296
25.2M → Finish5093-43#15296#15339
TOTALS34421065+2377
📊

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