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BOSTON MARATHON 2023

Marilee Smith

Bib: 18918•F

AZ

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

Start
0:00:00
Race begins
5K· 3.11 mi
26:48
Rank: #18411
Start → 5K
26:48 | 8:38/mi
10K· 6.21 mi
54:24
Rank: #19437 (-1026)
5K → 10K
27:36 | 8:53/mi
15K· 9.32 mi
1:21:46
Rank: #19462 (-25)
10K → 15K
27:22 | 8:49/mi
20K· 12.43 mi
1:50:32
Rank: #19839 (-377)
15K → 20K
28:46 | 9:16/mi
Half· 13.11 mi
1:56:42
Rank: #19863 (-24)
20K → Half
6:10 | 9:02/mi
25K· 15.53 mi
2:19:15
Rank: #19959 (-96)
Half → 25K
22:33 | 9:18/mi
30K· 18.64 mi
2:50:03
Rank: #20161 (-202)
25K → 30K
30:48 | 9:55/mi
20M
3:03:15
Rank: #20102 (+59)
30K → 20M
13:12 | 9:43/mi
21M
3:13:44
Rank: #20056 (+46)
20M → 21M
10:29 | 10:29/mi
35K· 21.75 mi
3:20:50
Rank: #20037 (+19)
21M → 35K
7:06 | 9:29/mi
23M
3:33:33
Rank: #20083 (-46)
35K → 23M
12:43 | 10:09/mi
24M
3:43:15
Rank: #20081 (+2)
23M → 24M
9:42 | 9:42/mi
40K· 24.85 mi
3:51:36
Rank: #20047 (+34)
24M → 40K
8:21 | 9:46/mi
25.2M
3:55:15
Rank: #20030 (+17)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
4:05:08
Rank: #20047 (-17)
25.2M → Finish
9:53 | 9:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:42
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:08:26
Pace9:48 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:0426:488:3826:48
8:38
-
10K
6.21 mi11:49:4054:248:4527:36
8:53
+0:15
15K
9.32 mi12:17:021:21:468:4627:22
8:49
-0:04
20K
12.43 mi12:45:481:50:328:5428:46
9:16
+0:27
Half
13.11 mi12:51:581:56:428:546:10
9:02
-0:14
25K
15.53 mi13:14:312:19:158:5822:33
9:18
+0:16
30K
18.64 mi13:45:192:50:039:0730:48
9:55
+0:37
20M
20.00 mi13:58:313:03:159:1013:12
9:43
-0:12
21M
21.00 mi14:09:003:13:449:1410:29
10:29
+0:46
35K
21.75 mi14:16:063:20:509:147:06
9:29
-1:00
23M
23.00 mi14:28:493:33:339:1712:43
10:09
+0:40
24M
24.00 mi14:38:313:43:159:189:42
9:42
-0:27
40K
24.85 mi14:46:523:51:369:198:21
9:46
+0:04
25.2M
25.20 mi14:50:313:55:159:203:39
10:35
+0:49
Finish
26.22 mi15:00:244:05:089:219:53
9:42
-0:53

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

8:38 /mi

Average Pace

9:21 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:15

57% of race

Time at Steady Pace

1:19:02

32% of race

Time at Slower Pace

26:51

11% of race

Average Pace: 9:21 /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 mi11:22:0426:488:3826:48
8:38
#18411
10K
6.21 mi11:49:4054:248:4527:36
8:53
#19437
15K
9.32 mi12:17:021:21:468:4627:22
8:49
#19462
20K
12.43 mi12:45:481:50:328:5428:46
9:16
#19839
Half
13.11 mi12:51:581:56:428:546:10
9:02
#19863
25K
15.53 mi13:14:312:19:158:5822:33
9:18
#19959
30K
18.64 mi13:45:192:50:039:0730:48
9:55
#20161
20M
20.00 mi13:58:313:03:159:1013:12
9:43
#20102
21M
21.00 mi14:09:003:13:449:1410:29
10:29
#20056
35K
21.75 mi14:16:063:20:509:147:06
9:29
#20037
23M
23.00 mi14:28:493:33:339:1712:43
10:09
#20083
24M
24.00 mi14:38:313:43:159:189:42
9:42
#20081
40K
24.85 mi14:46:523:51:369:198:21
9:46
#20047
25.2M
25.20 mi14:50:313:55:159:203:39
10:35
#20030
Finish
26.22 mi15:00:244:05:089:219:53
9:42
#20047
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi184116823682319581(Top 74%)7434(Top 65%)7434(Top 616%)
10K6.21 mi3.10 mi19437-10267421-5987421-59820359(Top 76%)7903(Top 69%)7903(Top 655%)
15K9.32 mi3.11 mi19462-257429-87429-819581(Top 74%)7434(Top 65%)7434(Top 616%)
20K12.43 mi3.11 mi19839-3777622-1937622-19320825(Top 78%)8126(Top 71%)8126(Top 673%)
Half13.11 mi0.68 mi19863-247640-187640-1820615(Top 77%)8028(Top 70%)8028(Top 665%)
25K15.53 mi2.42 mi19959-967689-497689-4920209(Top 76%)7814(Top 68%)7814(Top 647%)
30K18.64 mi3.11 mi20161-2027822-1337822-13320783(Top 78%)8217(Top 72%)8217(Top 681%)
20M20.00 mi1.36 mi20102+597804+187804+1819604(Top 74%)7640(Top 67%)7640(Top 633%)
21M21.00 mi1.00 mi20056+467780+247780+2419565(Top 73%)7683(Top 67%)7683(Top 637%)
35K21.75 mi0.75 mi20037+197776+47776+419837(Top 75%)7831(Top 69%)7831(Top 649%)
23M23.00 mi1.25 mi20083-467818-427818-4220458(Top 77%)8206(Top 72%)8206(Top 680%)
24M24.00 mi1.00 mi20081+27823-57823-519912(Top 75%)7924(Top 69%)7924(Top 657%)
40K24.85 mi0.85 mi20047+347810+137810+1319291(Top 72%)7649(Top 67%)7649(Top 634%)
25.2M25.20 mi0.35 mi20030+177808+27808+219395(Top 73%)7729(Top 68%)7729(Top 640%)
Finish26.22 mi1.02 mi20047-177826-187826-1820801(Top 78%)8462(Top 74%)8462(Top 701%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

19581

Females

7434

F50-54

7434

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20359

Females

7903

F50-54

7903

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

19581

Females

7434

F50-54

7434

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

20825

Females

8126

F50-54

8126

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20615

Females

8028

F50-54

8028

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20209

Females

7814

F50-54

7814

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20783

Females

8217

F50-54

8217

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19604

Females

7640

F50-54

7640

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19565

Females

7683

F50-54

7683

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19837

Females

7831

F50-54

7831

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20458

Females

8206

F50-54

8206

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19912

Females

7924

F50-54

7924

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19291

Females

7649

F50-54

7649

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19395

Females

7729

F50-54

7729

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20801

Females

8462

F50-54

8462

Passing Analysis

Category:
Athletes Passed
1011
Passed By
2647
Net Change
-1636
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18411
5K → 10K631089-1026#18411#19437
10K → 15K172197-25#19437#19462
15K → 20K68445-377#19462#19839
20K → Half2044-24#19839#19863
Half → 25K96192-96#19863#19959
25K → 30K91293-202#19959#20161
30K → 20M11758+59#20161#20102
20M → 21M9953+46#20102#20056
21M → 35K5435+19#20056#20037
35K → 23M63109-46#20037#20083
23M → 24M4442+2#20083#20081
24M → 40K5925+34#20081#20047
40K → 25.2M2912+17#20047#20030
25.2M → Finish3653-17#20030#20047
TOTALS10112647-1636
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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