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BOSTON MARATHON 2023

Sylvia Limm

Bib: 26778•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
11:45/mi
36:30
↑ 97↓ 3451.5%
10K· 6.21 mi
11:36/mi
1:12:32
↑ 79↓ 1380.4%
15K· 9.32 mi
11:28/mi
1:48:08
↑ 67↓ 78
20K· 12.43 mi
11:39/mi
2:24:19
↑ 106↓ 860.1%
Half· 13.11 mi
16:19/mi
2:35:27
↑ 19↓ 370.5%
25K· 15.53 mi
12:58/mi
3:06:53
↑ 66↓ 880.2%
30K· 18.64 mi
12:36/mi
3:46:02
↑ 181↓ 1480.2%
20M
11:38/mi
4:01:51
↑ 64↓ 500.2%
21M
13:01/mi
4:14:52
↑ 106↓ 241.6%
35K· 21.75 mi
11:44/mi
4:23:39
↑ 17↓ 861.7%
23M
12:16/mi
4:39:00
↑ 23↓ 630.6%
24M
10:31/mi
4:49:31
↓ 821.3%
40K· 24.85 mi
12:09/mi
4:59:54
↓ 200.3%
25.2M
15:57/mi
5:05:24
↑ 13↓ 160.2%
Finish· 26.22 mi
10:06/mi
5:15:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:35:27
Pace11:51 /mi
2nd Half
Distance13.11 mi
Time2:40:15
Pace12:13 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:4836:3011:4536:30
11:45
-
10K
6.21 mi12:34:501:12:3211:4036:02
11:36
-0:09
15K
9.32 mi13:10:261:48:0811:3635:36
11:28
-0:08
20K
12.43 mi13:46:372:24:1911:3736:11
11:39
+0:11
Half
13.11 mi13:57:452:35:2711:5111:08
16:19
+4:40
25K
15.53 mi14:29:113:06:5312:0231:26
12:58
-3:21
30K
18.64 mi15:08:203:46:0212:0839:09
12:36
-0:22
20M
20.00 mi15:24:094:01:5112:0615:49
11:38
-0:58
21M
21.00 mi15:37:104:14:5212:0813:01
13:01
+1:23
35K
21.75 mi15:45:574:23:3912:078:47
11:44
-1:17
23M
23.00 mi16:01:184:39:0012:0815:21
12:16
+0:32
24M
24.00 mi16:11:494:49:3112:0410:31
10:31
-1:45
40K
24.85 mi16:22:124:59:5412:0410:23
12:09
+1:38
25.2M
25.20 mi16:27:425:05:2412:075:30
15:57
+3:48
Finish
26.22 mi16:38:005:15:4212:0310:18
10:06
-5:51

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

10:06 /mi

Average Pace

12:03 /mi

Slowest Pace

16:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:49

7% of race

Time at Steady Pace

3:14:39

62% of race

Time at Slower Pace

1:40:14

32% of race

Average Pace: 12:02 /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 mi11:58:4836:3011:4536:30
11:45
#26347
10K
6.21 mi12:34:501:12:3211:4036:02
11:36
#26212
15K
9.32 mi13:10:261:48:0811:3635:36
11:28
#26050
20K
12.43 mi13:46:372:24:1911:3736:11
11:39
#25894
Half
13.11 mi13:57:452:35:2711:5111:08
16:19
#26052
25K
15.53 mi14:29:113:06:5312:0231:26
12:58
#26032
30K
18.64 mi15:08:203:46:0212:0839:09
12:36
#25886
20M
20.00 mi15:24:094:01:5112:0615:49
11:38
#25772
21M
21.00 mi15:37:104:14:5212:0813:01
13:01
#25704
35K
21.75 mi15:45:574:23:3912:078:47
11:44
#25672
23M
23.00 mi16:01:184:39:0012:0815:21
12:16
#25618
24M
24.00 mi16:11:494:49:3112:0410:31
10:31
#25538
40K
24.85 mi16:22:124:59:5412:0410:23
12:09
#25496
25.2M
25.20 mi16:27:425:05:2412:075:30
15:57
#25512
Finish
26.22 mi16:38:005:15:4212:0310:18
10:06
#25448
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi26347112591125925673(Top 96%)10848(Top 95%)10848(Top 597%)
10K6.21 mi3.10 mi26212+13511173+8611173+8626041(Top 98%)11065(Top 97%)11065(Top 609%)
15K9.32 mi3.11 mi26050+16211067+10611067+10625673(Top 96%)10848(Top 95%)10848(Top 597%)
20K12.43 mi3.11 mi25894+15610969+9810969+9825419(Top 95%)10728(Top 94%)10728(Top 590%)
Half13.11 mi0.68 mi26052-15811074-10511074-10526613(Top 100%)11418(Top 100%)11418(Top 628%)
25K15.53 mi2.42 mi26032+2011065+911065+925848(Top 97%)10991(Top 96%)10991(Top 605%)
30K18.64 mi3.11 mi25886+14610986+7910986+7925096(Top 94%)10624(Top 93%)10624(Top 585%)
20M20.00 mi1.36 mi25772+11410930+5610930+5623744(Top 89%)9927(Top 87%)9927(Top 546%)
21M21.00 mi1.00 mi25704+6810893+3710893+3724107(Top 91%)10151(Top 89%)10151(Top 559%)
35K21.75 mi0.75 mi25672+3210876+1710876+1724420(Top 92%)10353(Top 91%)10353(Top 570%)
23M23.00 mi1.25 mi25618+5410856+2010856+2024323(Top 91%)10300(Top 90%)10300(Top 567%)
24M24.00 mi1.00 mi25538+8010816+4010816+4022091(Top 83%)9153(Top 80%)9153(Top 504%)
40K24.85 mi0.85 mi25496+4210801+1510801+1524069(Top 90%)10211(Top 89%)10211(Top 562%)
25.2M25.20 mi0.35 mi25512-1610811-1010811-1026102(Top 98%)11215(Top 98%)11215(Top 617%)
Finish26.22 mi1.02 mi25448+6410777+3410777+3422072(Top 83%)9156(Top 80%)9156(Top 504%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25673

Females

10848

F45-49

10848

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

26041

Females

11065

F45-49

11065

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25673

Females

10848

F45-49

10848

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25419

Females

10728

F45-49

10728

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

26613

Females

11418

F45-49

11418

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25848

Females

10991

F45-49

10991

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

25096

Females

10624

F45-49

10624

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23744

Females

9927

F45-49

9927

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24107

Females

10151

F45-49

10151

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24420

Females

10353

F45-49

10353

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24323

Females

10300

F45-49

10300

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22091

Females

9153

F45-49

9153

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

24069

Females

10211

F45-49

10211

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26102

Females

11215

F45-49

11215

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22072

Females

9156

F45-49

9156

Passing Analysis

Category:
Athletes Passed
1142
Passed By
243
Net Change
+899
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26347
5K → 10K14611+135#26347#26212
10K → 15K1675+162#26212#26050
15K → 20K1626+156#26050#25894
20K → Half1159-158#25894#26052
Half → 25K4626+20#26052#26032
25K → 30K1515+146#26032#25886
30K → 20M1140+114#25886#25772
20M → 21M724+68#25772#25704
21M → 35K331+32#25704#25672
35K → 23M562+54#25672#25618
23M → 24M800+80#25618#25538
24M → 40K497+42#25538#25496
40K → 25.2M117-16#25496#25512
25.2M → Finish640+64#25512#25448
TOTALS1142243+899
📊

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