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BOSTON MARATHON 2023

Lisa Douglass

Bib: 20851•F

KS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 49%
Division (F50-54)
#0 / 1207
Top 45%
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
8:25/mi
26:09
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
52:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:18:58
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:45:31
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:51:18
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:11:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:51/mi
2:39:24
↑ 181↓ 1480.2%
20M
8:55/mi
2:51:31
↑ 64↓ 500.2%
21M
9:48/mi
3:01:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
3:08:02
↑ 17↓ 861.7%
23M
9:23/mi
3:19:47
↑ 23↓ 630.6%
24M
9:15/mi
3:29:02
↓ 821.3%
40K· 24.85 mi
10:05/mi
3:37:39
↓ 200.3%
25.2M
10:58/mi
3:41:26
↑ 13↓ 160.2%
Finish· 26.22 mi
9:54/mi
3:51:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:18
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:00:13
Pace9:10 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0226:098:2526:09
8:25
-
10K
6.21 mi11:47:2752:348:2826:25
8:30
+0:05
15K
9.32 mi12:13:511:18:588:2826:24
8:30
0:00
20K
12.43 mi12:40:241:45:318:2926:33
8:33
+0:03
Half
13.11 mi12:46:111:51:188:295:47
8:29
-0:04
25K
15.53 mi13:06:462:11:538:2920:35
8:29
0:00
30K
18.64 mi13:34:172:39:248:3327:31
8:51
+0:22
20M
20.00 mi13:46:242:51:318:3512:07
8:55
+0:04
21M
21.00 mi13:56:123:01:198:389:48
9:48
+0:53
35K
21.75 mi14:02:553:08:028:396:43
8:59
-0:49
23M
23.00 mi14:14:403:19:478:4111:45
9:23
+0:24
24M
24.00 mi14:23:553:29:028:439:15
9:15
-0:08
40K
24.85 mi14:32:323:37:398:458:37
10:05
+0:50
25.2M
25.20 mi14:36:193:41:268:473:47
10:58
+0:53
Finish
26.22 mi14:46:243:51:318:5010:05
9:54
-1:04

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

8:25 /mi

Average Pace

8:50 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:53

57% of race

Time at Steady Pace

55:36

24% of race

Time at Slower Pace

44:02

19% of race

Average Pace: 8:50 /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 mi11:21:0226:098:2526:09
8:25
#17021
10K
6.21 mi11:47:2752:348:2826:25
8:30
#17641
15K
9.32 mi12:13:511:18:588:2826:24
8:30
#17677
20K
12.43 mi12:40:241:45:318:2926:33
8:33
#17493
Half
13.11 mi12:46:111:51:188:295:47
8:29
#17501
25K
15.53 mi13:06:462:11:538:2920:35
8:29
#17265
30K
18.64 mi13:34:172:39:248:3327:31
8:51
#17064
20M
20.00 mi13:46:242:51:318:3512:07
8:55
#16981
21M
21.00 mi13:56:123:01:198:389:48
9:48
#16988
35K
21.75 mi14:02:553:08:028:396:43
8:59
#17031
23M
23.00 mi14:14:403:19:478:4111:45
9:23
#17093
24M
24.00 mi14:23:553:29:028:439:15
9:15
#17143
40K
24.85 mi14:32:323:37:398:458:37
10:05
#17337
25.2M
25.20 mi14:36:193:41:268:473:47
10:58
#17431
Finish
26.22 mi14:46:243:51:318:5010:05
9:54
#17676
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi170215943594317803(Top 67%)6389(Top 56%)6389(Top 529%)
10K6.21 mi3.10 mi17641-6206310-3676310-36718275(Top 69%)6642(Top 58%)6642(Top 550%)
15K9.32 mi3.11 mi17677-366324-146324-1417803(Top 67%)6389(Top 56%)6389(Top 529%)
20K12.43 mi3.11 mi17493+1846213+1116213+11117155(Top 64%)6024(Top 53%)6024(Top 499%)
Half13.11 mi0.68 mi17501-86225-126225-1217630(Top 66%)6267(Top 55%)6267(Top 519%)
25K15.53 mi2.42 mi17265+2366095+1306095+13016147(Top 61%)5531(Top 48%)5531(Top 458%)
30K18.64 mi3.11 mi17064+2016003+926003+9216426(Top 62%)5744(Top 50%)5744(Top 476%)
20M20.00 mi1.36 mi16981+835959+445959+4416128(Top 61%)5651(Top 49%)5651(Top 468%)
21M21.00 mi1.00 mi16988-75982-235982-2317275(Top 65%)6352(Top 56%)6352(Top 526%)
35K21.75 mi0.75 mi17031-436020-386020-3817836(Top 67%)6738(Top 59%)6738(Top 558%)
23M23.00 mi1.25 mi17093-626075-556075-5517889(Top 67%)6800(Top 60%)6800(Top 563%)
24M24.00 mi1.00 mi17143-506122-476122-4718271(Top 69%)7039(Top 62%)7039(Top 583%)
40K24.85 mi0.85 mi17337-1946250-1286250-12820183(Top 76%)8152(Top 71%)8152(Top 675%)
25.2M25.20 mi0.35 mi17431-946312-626312-6220399(Top 77%)8256(Top 72%)8256(Top 684%)
Finish26.22 mi1.02 mi17676-2456463-1516463-15121465(Top 81%)8821(Top 77%)8821(Top 731%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17803

Females

6389

F50-54

6389

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18275

Females

6642

F50-54

6642

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17803

Females

6389

F50-54

6389

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17155

Females

6024

F50-54

6024

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

17630

Females

6267

F50-54

6267

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16147

Females

5531

F50-54

5531

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16426

Females

5744

F50-54

5744

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16128

Females

5651

F50-54

5651

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17275

Females

6352

F50-54

6352

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17836

Females

6738

F50-54

6738

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17889

Females

6800

F50-54

6800

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18271

Females

7039

F50-54

7039

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20183

Females

8152

F50-54

8152

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20399

Females

8256

F50-54

8256

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21465

Females

8821

F50-54

8821

Passing Analysis

Category:
Athletes Passed
1497
Passed By
2152
Net Change
-655
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17021
5K → 10K108728-620#17021#17641
10K → 15K178214-36#17641#17677
15K → 20K26783+184#17677#17493
20K → Half3139-8#17493#17501
Half → 25K25519+236#17501#17265
25K → 30K27776+201#17265#17064
30K → 20M11532+83#17064#16981
20M → 21M8592-7#16981#16988
21M → 35K3376-43#16988#17031
35K → 23M63125-62#17031#17093
23M → 24M4797-50#17093#17143
24M → 40K22216-194#17143#17337
40K → 25.2M9103-94#17337#17431
25.2M → Finish7252-245#17431#17676
TOTALS14972152-655
📊

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