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BOSTON MARATHON 2023

Lisa Spencer

Bib: 22038•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 (F50-54)
#0 / 1207
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
8:48/mi
27:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
54:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:21:34
↑ 67↓ 78
20K· 12.43 mi
8:43/mi
1:48:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:54:31
↑ 19↓ 370.5%
25K· 15.53 mi
8:48/mi
2:15:50
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:44:46
↑ 181↓ 1480.2%
20M
9:30/mi
2:57:40
↑ 64↓ 500.2%
21M
10:27/mi
3:08:07
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:14:52
↑ 17↓ 861.7%
23M
9:41/mi
3:27:00
↑ 23↓ 630.6%
24M
9:08/mi
3:36:08
↓ 821.3%
40K· 24.85 mi
9:39/mi
3:44:23
↓ 200.3%
25.2M
10:23/mi
3:47:58
↑ 13↓ 160.2%
Finish· 26.22 mi
9:38/mi
3:57:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:31
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:03:16
Pace9:24 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2527:208:4827:20
8:48
-
10K
6.21 mi11:48:3854:338:4727:13
8:46
-0:02
15K
9.32 mi12:15:391:21:348:4527:01
8:42
-0:04
20K
12.43 mi12:42:451:48:408:4527:06
8:43
+0:01
Half
13.11 mi12:48:361:54:318:445:51
8:34
-0:09
25K
15.53 mi13:09:552:15:508:4521:19
8:48
+0:14
30K
18.64 mi13:38:512:44:468:5028:56
9:19
+0:31
20M
20.00 mi13:51:452:57:408:5312:54
9:30
+0:11
21M
21.00 mi14:02:123:08:078:5710:27
10:27
+0:57
35K
21.75 mi14:08:573:14:528:586:45
9:01
-1:26
23M
23.00 mi14:21:053:27:009:0012:08
9:41
+0:40
24M
24.00 mi14:30:133:36:089:009:08
9:08
-0:33
40K
24.85 mi14:38:283:44:239:028:15
9:39
+0:31
25.2M
25.20 mi14:42:033:47:589:033:35
10:23
+0:44
Finish
26.22 mi14:51:523:57:479:059:49
9:38
-0:45

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

8:34 /mi

Average Pace

9:05 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:50

57% of race

Time at Steady Pace

44:49

19% of race

Time at Slower Pace

57:08

24% of race

Average Pace: 9:04 /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 mi11:21:2527:208:4827:20
8:48
#19450
10K
6.21 mi11:48:3854:338:4727:13
8:46
#19571
15K
9.32 mi12:15:391:21:348:4527:01
8:42
#19344
20K
12.43 mi12:42:451:48:408:4527:06
8:43
#19038
Half
13.11 mi12:48:361:54:318:445:51
8:34
#19006
25K
15.53 mi13:09:552:15:508:4521:19
8:48
#18825
30K
18.64 mi13:38:512:44:468:5028:56
9:19
#18790
20M
20.00 mi13:51:452:57:408:5312:54
9:30
#18802
21M
21.00 mi14:02:123:08:078:5710:27
10:27
#18851
35K
21.75 mi14:08:573:14:528:586:45
9:01
#18812
23M
23.00 mi14:21:053:27:009:0012:08
9:41
#18832
24M
24.00 mi14:30:133:36:089:009:08
9:08
#18776
40K
24.85 mi14:38:283:44:239:028:15
9:39
#18794
25.2M
25.20 mi14:42:033:47:589:033:35
10:23
#18800
Finish
26.22 mi14:51:523:57:479:059:49
9:38
#18905
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi194507479747918963(Top 71%)7078(Top 62%)7078(Top 586%)
10K6.21 mi3.10 mi19571-1217512-337512-3319738(Top 74%)7538(Top 66%)7538(Top 625%)
15K9.32 mi3.11 mi19344+2277347+1657347+16518963(Top 71%)7078(Top 62%)7078(Top 586%)
20K12.43 mi3.11 mi19038+3067143+2047143+20418269(Top 69%)6654(Top 58%)6654(Top 551%)
Half13.11 mi0.68 mi19006+327128+157128+1518249(Top 69%)6644(Top 58%)6644(Top 550%)
25K15.53 mi2.42 mi18825+1817025+1037025+10317917(Top 67%)6522(Top 57%)6522(Top 540%)
30K18.64 mi3.11 mi18790+357025702518689(Top 70%)7027(Top 62%)7027(Top 582%)
20M20.00 mi1.36 mi18802-127037-127037-1218841(Top 71%)7212(Top 63%)7212(Top 598%)
21M21.00 mi1.00 mi18851-497082-457082-4519438(Top 73%)7601(Top 67%)7601(Top 630%)
35K21.75 mi0.75 mi18812+397064+187064+1818028(Top 68%)6859(Top 60%)6859(Top 568%)
23M23.00 mi1.25 mi18832-207094-307094-3019054(Top 72%)7437(Top 65%)7437(Top 616%)
24M24.00 mi1.00 mi18776+567073+217073+2117822(Top 67%)6815(Top 60%)6815(Top 565%)
40K24.85 mi0.85 mi18794-187094-217094-2118871(Top 71%)7421(Top 65%)7421(Top 615%)
25.2M25.20 mi0.35 mi18800-67106-127106-1218782(Top 71%)7386(Top 65%)7386(Top 612%)
Finish26.22 mi1.02 mi18905-1057155-497155-4920590(Top 77%)8341(Top 73%)8341(Top 691%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18963

Females

7078

F50-54

7078

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19738

Females

7538

F50-54

7538

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18963

Females

7078

F50-54

7078

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18269

Females

6654

F50-54

6654

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18249

Females

6644

F50-54

6644

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17917

Females

6522

F50-54

6522

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18689

Females

7027

F50-54

7027

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18841

Females

7212

F50-54

7212

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19438

Females

7601

F50-54

7601

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18028

Females

6859

F50-54

6859

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19054

Females

7437

F50-54

7437

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17822

Females

6815

F50-54

6815

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18871

Females

7421

F50-54

7421

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18782

Females

7386

F50-54

7386

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20590

Females

8341

F50-54

8341

Passing Analysis

Category:
Athletes Passed
1834
Passed By
1289
Net Change
+545
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19450
5K → 10K258379-121#19450#19571
10K → 15K331104+227#19571#19344
15K → 20K35044+306#19344#19038
20K → Half4513+32#19038#19006
Half → 25K21635+181#19006#18825
25K → 30K181146+35#18825#18790
30K → 20M8395-12#18790#18802
20M → 21M67116-49#18802#18851
21M → 35K6728+39#18851#18812
35K → 23M6888-20#18812#18832
23M → 24M8832+56#18832#18776
24M → 40K4260-18#18776#18794
40K → 25.2M2329-6#18794#18800
25.2M → Finish15120-105#18800#18905
TOTALS18341289+545
📊

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