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BOSTON MARATHON 2023

Mary Ann Lawrenson

Bib: 23775•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 32%
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
9:15/mi
28:44
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
56:14
↑ 79↓ 1380.4%
15K· 9.32 mi
8:55/mi
1:23:57
↑ 67↓ 78
20K· 12.43 mi
8:58/mi
1:51:48
↑ 106↓ 860.1%
Half· 13.11 mi
8:51/mi
1:57:50
↑ 19↓ 370.5%
25K· 15.53 mi
8:55/mi
2:19:28
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
2:48:03
↑ 181↓ 1480.2%
20M
9:13/mi
3:00:34
↑ 64↓ 500.2%
21M
9:21/mi
3:09:55
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
3:16:28
↑ 17↓ 861.7%
23M
8:50/mi
3:27:32
↑ 23↓ 630.6%
24M
8:29/mi
3:36:01
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:43:13
↓ 200.3%
25.2M
9:08/mi
3:46:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:57/mi
3:54:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:57:50
Pace8:59 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:38
Pace8:54 /mi
📊Negative Split: 1.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3728:449:1528:44
9:15
-
10K
6.21 mi11:52:0756:149:0327:30
8:51
-0:24
15K
9.32 mi12:19:501:23:579:0027:43
8:55
+0:04
20K
12.43 mi12:47:411:51:489:0027:51
8:58
+0:03
Half
13.11 mi12:53:431:57:508:596:02
8:51
-0:07
25K
15.53 mi13:15:212:19:288:5921:38
8:55
+0:04
30K
18.64 mi13:43:562:48:039:0128:35
9:12
+0:17
20M
20.00 mi13:56:273:00:349:0212:31
9:13
+0:01
21M
21.00 mi14:05:483:09:559:039:21
9:21
+0:08
35K
21.75 mi14:12:213:16:289:026:33
8:45
-0:36
23M
23.00 mi14:23:253:27:329:0111:04
8:50
+0:05
24M
24.00 mi14:31:543:36:019:008:29
8:29
-0:21
40K
24.85 mi14:39:063:43:138:597:12
8:25
-0:04
25.2M
25.20 mi14:42:153:46:228:593:09
9:08
+0:43
Finish
26.22 mi14:50:213:54:288:578:06
7:57
-1:11

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

7:57 /mi

Average Pace

8:57 /mi

Slowest Pace

9:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:47

10% of race

Time at Steady Pace

3:30:41

90% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:57 /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 mi11:24:3728:449:1528:44
9:15
#21370
10K
6.21 mi11:52:0756:149:0327:30
8:51
#20853
15K
9.32 mi12:19:501:23:579:0027:43
8:55
#20604
20K
12.43 mi12:47:411:51:489:0027:51
8:58
#20346
Half
13.11 mi12:53:431:57:508:596:02
8:51
#20311
25K
15.53 mi13:15:212:19:288:5921:38
8:55
#20014
30K
18.64 mi13:43:562:48:039:0128:35
9:12
#19657
20M
20.00 mi13:56:273:00:349:0212:31
9:13
#19494
21M
21.00 mi14:05:483:09:559:039:21
9:21
#19253
35K
21.75 mi14:12:213:16:289:026:33
8:45
#19175
23M
23.00 mi14:23:253:27:329:0111:04
8:50
#18948
24M
24.00 mi14:31:543:36:019:008:29
8:29
#18749
40K
24.85 mi14:39:063:43:138:597:12
8:25
#18554
25.2M
25.20 mi14:42:153:46:228:593:09
9:08
#18477
Finish
26.22 mi14:50:213:54:288:578:06
7:57
#18271
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi213708561856120147(Top 76%)7751(Top 68%)7751(Top 951%)
10K6.21 mi3.10 mi20853+5178233+3288233+32820190(Top 76%)7813(Top 68%)7813(Top 959%)
15K9.32 mi3.11 mi20604+2498075+1588075+15820147(Top 76%)7751(Top 68%)7751(Top 951%)
20K12.43 mi3.11 mi20346+2587913+1627913+16219531(Top 73%)7395(Top 65%)7395(Top 907%)
Half13.11 mi0.68 mi20311+357893+207893+2019734(Top 74%)7505(Top 66%)7505(Top 921%)
25K15.53 mi2.42 mi20014+2977715+1787715+17818580(Top 70%)6897(Top 60%)6897(Top 846%)
30K18.64 mi3.11 mi19657+3577523+1927523+19218172(Top 68%)6750(Top 59%)6750(Top 828%)
20M20.00 mi1.36 mi19494+1637449+747449+7417622(Top 66%)6534(Top 57%)6534(Top 802%)
21M21.00 mi1.00 mi19253+2417314+1357314+13515297(Top 57%)5234(Top 46%)5234(Top 642%)
35K21.75 mi0.75 mi19175+787278+367278+3616771(Top 63%)6159(Top 54%)6159(Top 756%)
23M23.00 mi1.25 mi18948+2277153+1257153+12515239(Top 57%)5320(Top 47%)5320(Top 653%)
24M24.00 mi1.00 mi18749+1997058+957058+9514428(Top 54%)4922(Top 43%)4922(Top 604%)
40K24.85 mi0.85 mi18554+1956949+1096949+10912903(Top 48%)4176(Top 37%)4176(Top 512%)
25.2M25.20 mi0.35 mi18477+776912+376912+3713401(Top 50%)4472(Top 39%)4472(Top 549%)
Finish26.22 mi1.02 mi18271+2066807+1056807+10511801(Top 44%)3621(Top 32%)3621(Top 444%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20147

Females

7751

F55-59

7751

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20190

Females

7813

F55-59

7813

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20147

Females

7751

F55-59

7751

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19531

Females

7395

F55-59

7395

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19734

Females

7505

F55-59

7505

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18580

Females

6897

F55-59

6897

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18172

Females

6750

F55-59

6750

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17622

Females

6534

F55-59

6534

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15297

Females

5234

F55-59

5234

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16771

Females

6159

F55-59

6159

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15239

Females

5320

F55-59

5320

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

14428

Females

4922

F55-59

4922

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12903

Females

4176

F55-59

4176

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13401

Females

4472

F55-59

4472

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11801

Females

3621

F55-59

3621

Passing Analysis

Category:
Athletes Passed
3424
Passed By
325
Net Change
+3099
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21370
5K → 10K61699+517#21370#20853
10K → 15K33081+249#20853#20604
15K → 20K30648+258#20604#20346
20K → Half5116+35#20346#20311
Half → 25K31215+297#20311#20014
25K → 30K38528+357#20014#19657
30K → 20M17815+163#19657#19494
20M → 21M2432+241#19494#19253
21M → 35K868+78#19253#19175
35K → 23M2336+227#19175#18948
23M → 24M2012+199#18948#18749
24M → 40K1961+195#18749#18554
40K → 25.2M770+77#18554#18477
25.2M → Finish2104+206#18477#18271
TOTALS3424325+3099
📊

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