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BOSTON MARATHON 2023

Lisa Welch

Bib: 19229•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 45%
Division (F50-54)
#0 / 1207
Top 39%
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
8:35/mi
26:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
53:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:20:41
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:47:35
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:53:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:14:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:42:38
↑ 181↓ 1480.2%
20M
9:02/mi
2:54:54
↑ 64↓ 500.2%
21M
9:09/mi
3:04:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
3:10:36
↑ 17↓ 861.7%
23M
8:54/mi
3:21:44
↑ 23↓ 630.6%
24M
8:38/mi
3:30:22
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:37:46
↓ 200.3%
25.2M
9:05/mi
3:40:54
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:49:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:33
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time1:55:43
Pace8:50 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4526:418:3526:41
8:35
-
10K
6.21 mi11:47:5453:508:4027:09
8:44
+0:09
15K
9.32 mi12:14:451:20:418:3926:51
8:39
-0:05
20K
12.43 mi12:41:391:47:358:3926:54
8:39
0:00
Half
13.11 mi12:47:371:53:338:405:58
8:45
+0:06
25K
15.53 mi13:08:512:14:478:4121:14
8:45
0:00
30K
18.64 mi13:36:422:42:388:4327:51
8:58
+0:13
20M
20.00 mi13:48:582:54:548:4512:16
9:02
+0:04
21M
21.00 mi13:58:073:04:038:469:09
9:09
+0:07
35K
21.75 mi14:04:403:10:368:466:33
8:45
-0:24
23M
23.00 mi14:15:483:21:448:4611:08
8:54
+0:09
24M
24.00 mi14:24:263:30:228:468:38
8:38
-0:16
40K
24.85 mi14:31:503:37:468:467:24
8:39
+0:01
25.2M
25.20 mi14:34:583:40:548:463:08
9:05
+0:26
Finish
26.22 mi14:43:203:49:168:458:22
8:13
-0:52

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

8:13 /mi

Average Pace

8:45 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:59

95% of race

Time at Steady Pace

12:17

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:45 /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 mi11:20:4526:418:3526:41
8:35
#18165
10K
6.21 mi11:47:5453:508:4027:09
8:44
#18905
15K
9.32 mi12:14:451:20:418:3926:51
8:39
#18791
20K
12.43 mi12:41:391:47:358:3926:54
8:39
#18549
Half
13.11 mi12:47:371:53:338:405:58
8:45
#18587
25K
15.53 mi13:08:512:14:478:4121:14
8:45
#18436
30K
18.64 mi13:36:422:42:388:4327:51
8:58
#18130
20M
20.00 mi13:48:582:54:548:4512:16
9:02
#18001
21M
21.00 mi13:58:073:04:038:469:09
9:09
#17758
35K
21.75 mi14:04:403:10:368:466:33
8:45
#17711
23M
23.00 mi14:15:483:21:448:4611:08
8:54
#17585
24M
24.00 mi14:24:263:30:228:468:38
8:38
#17490
40K
24.85 mi14:31:503:37:468:467:24
8:39
#17367
25.2M
25.20 mi14:34:583:40:548:463:08
9:05
#17294
Finish
26.22 mi14:43:203:49:168:458:22
8:13
#17177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi181656660666018697(Top 70%)6920(Top 61%)6920(Top 573%)
10K6.21 mi3.10 mi18905-7407081-4217081-42119632(Top 74%)7467(Top 65%)7467(Top 619%)
15K9.32 mi3.11 mi18791+1146998+836998+8318697(Top 70%)6920(Top 61%)6920(Top 573%)
20K12.43 mi3.11 mi18549+2426831+1676831+16717870(Top 67%)6435(Top 56%)6435(Top 533%)
Half13.11 mi0.68 mi18587-386857-266857-2619196(Top 72%)7187(Top 63%)7187(Top 595%)
25K15.53 mi2.42 mi18436+1516790+676790+6717710(Top 67%)6407(Top 56%)6407(Top 531%)
30K18.64 mi3.11 mi18130+3066648+1426648+14216984(Top 64%)6054(Top 53%)6054(Top 502%)
20M20.00 mi1.36 mi18001+1296587+616587+6116707(Top 63%)5980(Top 52%)5980(Top 495%)
21M21.00 mi1.00 mi17758+2436444+1436444+14314260(Top 54%)4637(Top 41%)4637(Top 384%)
35K21.75 mi0.75 mi17711+476433+116433+1116746(Top 63%)6134(Top 54%)6134(Top 508%)
23M23.00 mi1.25 mi17585+1266370+636370+6315527(Top 58%)5472(Top 48%)5472(Top 453%)
24M24.00 mi1.00 mi17490+956320+506320+5015307(Top 57%)5419(Top 47%)5419(Top 449%)
40K24.85 mi0.85 mi17367+1236266+546266+5414312(Top 54%)4927(Top 43%)4927(Top 408%)
25.2M25.20 mi0.35 mi17294+736232+346232+3413120(Top 49%)4318(Top 38%)4318(Top 358%)
Finish26.22 mi1.02 mi17177+1176169+636169+6313562(Top 51%)4517(Top 40%)4517(Top 374%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18697

Females

6920

F50-54

6920

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19632

Females

7467

F50-54

7467

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18697

Females

6920

F50-54

6920

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17870

Females

6435

F50-54

6435

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19196

Females

7187

F50-54

7187

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17710

Females

6407

F50-54

6407

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16984

Females

6054

F50-54

6054

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16707

Females

5980

F50-54

5980

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14260

Females

4637

F50-54

4637

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16746

Females

6134

F50-54

6134

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15527

Females

5472

F50-54

5472

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15307

Females

5419

F50-54

5419

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14312

Females

4927

F50-54

4927

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13120

Females

4318

F50-54

4318

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13562

Females

4517

F50-54

4517

Passing Analysis

Category:
Athletes Passed
2305
Passed By
1317
Net Change
+988
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18165
5K → 10K98838-740#18165#18905
10K → 15K250136+114#18905#18791
15K → 20K29048+242#18791#18549
20K → Half1957-38#18549#18587
Half → 25K20756+151#18587#18436
25K → 30K35852+306#18436#18130
30K → 20M15425+129#18130#18001
20M → 21M2496+243#18001#17758
21M → 35K7023+47#17758#17711
35K → 23M14721+126#17711#17585
23M → 24M12227+95#17585#17490
24M → 40K1318+123#17490#17367
40K → 25.2M774+73#17367#17294
25.2M → Finish13316+117#17294#17177
TOTALS23051317+988
📊

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