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BOSTON MARATHON 2023

Lynn Vasconcelos

Bib: 21102•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Masters (Masters Women)
#0 / 6539
Top 17%
Division (F45-49)
#0 / 1817
Top 18%
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
8:05/mi
25:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
50:05
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:14:53
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:39:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:45:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:07/mi
2:04:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:30:09
↑ 181↓ 1480.2%
20M
8:14/mi
2:41:20
↑ 64↓ 500.2%
21M
8:31/mi
2:49:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:55:47
↑ 17↓ 861.7%
23M
8:05/mi
3:05:54
↑ 23↓ 630.6%
24M
7:52/mi
3:13:46
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:20:32
↓ 200.3%
25.2M
8:33/mi
3:23:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:43/mi
3:31:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:01
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:46:20
Pace8:07 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4725:078:0525:07
8:05
-
10K
6.21 mi11:44:4550:058:0424:58
8:02
-0:03
15K
9.32 mi12:09:331:14:538:0224:48
7:59
-0:03
20K
12.43 mi12:34:171:39:378:0124:44
7:58
-0:01
Half
13.11 mi12:39:411:45:018:015:24
7:55
-0:03
25K
15.53 mi12:59:212:04:418:0219:40
8:07
+0:12
30K
18.64 mi13:24:492:30:098:0325:28
8:12
+0:05
20M
20.00 mi13:36:002:41:208:0411:11
8:14
+0:02
21M
21.00 mi13:44:312:49:518:058:31
8:31
+0:17
35K
21.75 mi13:50:272:55:478:055:56
7:56
-0:35
23M
23.00 mi14:00:343:05:548:0510:07
8:05
+0:09
24M
24.00 mi14:08:263:13:468:047:52
7:52
-0:13
40K
24.85 mi14:15:123:20:328:046:46
7:55
+0:03
25.2M
25.20 mi14:18:093:23:298:042:57
8:33
+0:38
Finish
26.22 mi14:26:013:31:218:047:52
7:43
-0:50

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

7:43 /mi

Average Pace

8:04 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:53

95% of race

Time at Steady Pace

11:28

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:04 /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 mi11:19:4725:078:0525:07
8:05
#14590
10K
6.21 mi11:44:4550:058:0424:58
8:02
#14821
15K
9.32 mi12:09:331:14:538:0224:48
7:59
#14608
20K
12.43 mi12:34:171:39:378:0124:44
7:58
#14218
Half
13.11 mi12:39:411:45:018:015:24
7:55
#14201
25K
15.53 mi12:59:212:04:418:0219:40
8:07
#14067
30K
18.64 mi13:24:492:30:098:0325:28
8:12
#13724
20M
20.00 mi13:36:002:41:208:0411:11
8:14
#13564
21M
21.00 mi13:44:312:49:518:058:31
8:31
#13356
35K
21.75 mi13:50:272:55:478:055:56
7:56
#13274
23M
23.00 mi14:00:343:05:548:0510:07
8:05
#13067
24M
24.00 mi14:08:263:13:468:047:52
7:52
#12940
40K
24.85 mi14:15:123:20:328:046:46
7:55
#12804
25.2M
25.20 mi14:18:093:23:298:042:57
8:33
#12747
Finish
26.22 mi14:26:013:31:218:047:52
7:43
#12635
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi145904381438114237(Top 53%)4217(Top 37%)4217(Top 232%)
10K6.21 mi3.10 mi14821-2314535-1544535-15415072(Top 57%)4709(Top 41%)4709(Top 259%)
15K9.32 mi3.11 mi14608+2134418+1174418+11714237(Top 53%)4217(Top 37%)4217(Top 232%)
20K12.43 mi3.11 mi14218+3904211+2074211+20713114(Top 49%)3607(Top 32%)3607(Top 199%)
Half13.11 mi0.68 mi14201+174200+114200+1113724(Top 52%)3911(Top 34%)3911(Top 215%)
25K15.53 mi2.42 mi14067+1344150+504150+5013584(Top 51%)3970(Top 35%)3970(Top 218%)
30K18.64 mi3.11 mi13724+3433973+1773973+17712341(Top 46%)3382(Top 30%)3382(Top 186%)
20M20.00 mi1.36 mi13564+1603900+733900+7311911(Top 45%)3227(Top 28%)3227(Top 178%)
21M21.00 mi1.00 mi13356+2083786+1143786+11410619(Top 40%)2692(Top 24%)2692(Top 148%)
35K21.75 mi0.75 mi13274+823758+283758+2811664(Top 44%)3243(Top 28%)3243(Top 178%)
23M23.00 mi1.25 mi13067+2073662+963662+9610346(Top 39%)2690(Top 24%)2690(Top 148%)
24M24.00 mi1.00 mi12940+1273609+533609+5310322(Top 39%)2754(Top 24%)2754(Top 152%)
40K24.85 mi0.85 mi12804+1363554+553554+559511(Top 36%)2426(Top 21%)2426(Top 134%)
25.2M25.20 mi0.35 mi12747+573525+293525+299979(Top 37%)2695(Top 24%)2695(Top 148%)
Finish26.22 mi1.02 mi12635+1123482+433482+4310141(Top 38%)2772(Top 24%)2772(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14237

Females

4217

F45-49

4217

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15072

Females

4709

F45-49

4709

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14237

Females

4217

F45-49

4217

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13114

Females

3607

F45-49

3607

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13724

Females

3911

F45-49

3911

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13584

Females

3970

F45-49

3970

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12341

Females

3382

F45-49

3382

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

11911

Females

3227

F45-49

3227

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10619

Females

2692

F45-49

2692

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11664

Females

3243

F45-49

3243

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10346

Females

2690

F45-49

2690

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10322

Females

2754

F45-49

2754

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9511

Females

2426

F45-49

2426

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9979

Females

2695

F45-49

2695

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10141

Females

2772

F45-49

2772

Passing Analysis

Category:
Athletes Passed
2749
Passed By
794
Net Change
+1955
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14590
5K → 10K195426-231#14590#14821
10K → 15K31097+213#14821#14608
15K → 20K41929+390#14608#14218
20K → Half3518+17#14218#14201
Half → 25K21379+134#14201#14067
25K → 30K38340+343#14067#13724
30K → 20M18424+160#13724#13564
20M → 21M22012+208#13564#13356
21M → 35K9412+82#13356#13274
35K → 23M22316+207#13274#13067
23M → 24M13811+127#13067#12940
24M → 40K1448+136#12940#12804
40K → 25.2M658+57#12804#12747
25.2M → Finish12614+112#12747#12635
TOTALS2749794+1955
📊

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