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BOSTON MARATHON 2023

Mellissa Williamson

Bib: 25532•F

CA

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
27:13
Rank: #19245
Start → 5K
27:13 | 8:46/mi
10K· 6.21 mi
53:44
Rank: #18792 (+453)
5K → 10K
26:31 | 8:32/mi
15K· 9.32 mi
1:21:03
Rank: #19023 (-231)
10K → 15K
27:19 | 8:48/mi
20K· 12.43 mi
1:49:17
Rank: #19294 (-271)
15K → 20K
28:14 | 9:05/mi
Half· 13.11 mi
1:55:27
Rank: #19361 (-67)
20K → Half
6:10 | 9:02/mi
25K· 15.53 mi
2:18:32
Rank: #19716 (-355)
Half → 25K
23:05 | 9:31/mi
30K· 18.64 mi
2:48:47
Rank: #19851 (-135)
25K → 30K
30:15 | 9:44/mi
20M
3:02:14
Rank: #19866 (-15)
30K → 20M
13:27 | 9:54/mi
21M
3:12:40
Rank: #19832 (+34)
20M → 21M
10:26 | 10:26/mi
35K· 21.75 mi
3:19:48
Rank: #19840 (-8)
21M → 35K
7:08 | 9:32/mi
23M
3:32:03
Rank: #19808 (+32)
35K → 23M
12:15 | 9:47/mi
24M
3:41:53
Rank: #19849 (-41)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
3:50:40
Rank: #19911 (-62)
24M → 40K
8:47 | 10:16/mi
25.2M
3:54:36
Rank: #19943 (-32)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
4:05:05
Rank: #20043 (-100)
25.2M → Finish
10:29 | 10:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:27
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:09:38
Pace9:53 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2327:138:4627:13
8:46
-
10K
6.21 mi12:09:5453:448:3926:31
8:32
-0:14
15K
9.32 mi12:37:131:21:038:4227:19
8:48
+0:16
20K
12.43 mi13:05:271:49:178:4828:14
9:05
+0:17
Half
13.11 mi13:11:371:55:278:486:10
9:02
-0:03
25K
15.53 mi13:34:422:18:328:5523:05
9:31
+0:29
30K
18.64 mi14:04:572:48:479:0330:15
9:44
+0:13
20M
20.00 mi14:18:243:02:149:0713:27
9:54
+0:10
21M
21.00 mi14:28:503:12:409:1010:26
10:26
+0:32
35K
21.75 mi14:35:583:19:489:117:08
9:32
-0:54
23M
23.00 mi14:48:133:32:039:1312:15
9:47
+0:15
24M
24.00 mi14:58:033:41:539:159:50
9:50
+0:03
40K
24.85 mi15:06:503:50:409:178:47
10:16
+0:26
25.2M
25.20 mi15:10:463:54:369:193:56
11:24
+1:08
Finish
26.22 mi15:21:154:05:059:2110:29
10:17
-1:07

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

8:32 /mi

Average Pace

9:21 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:27

47% of race

Time at Steady Pace

1:36:00

39% of race

Time at Slower Pace

33:38

14% 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 mi11:43:2327:138:4627:13
8:46
#19245
10K
6.21 mi12:09:5453:448:3926:31
8:32
#18792
15K
9.32 mi12:37:131:21:038:4227:19
8:48
#19023
20K
12.43 mi13:05:271:49:178:4828:14
9:05
#19294
Half
13.11 mi13:11:371:55:278:486:10
9:02
#19361
25K
15.53 mi13:34:422:18:328:5523:05
9:31
#19716
30K
18.64 mi14:04:572:48:479:0330:15
9:44
#19851
20M
20.00 mi14:18:243:02:149:0713:27
9:54
#19866
21M
21.00 mi14:28:503:12:409:1010:26
10:26
#19832
35K
21.75 mi14:35:583:19:489:117:08
9:32
#19840
23M
23.00 mi14:48:133:32:039:1312:15
9:47
#19808
24M
24.00 mi14:58:033:41:539:159:50
9:50
#19849
40K
24.85 mi15:06:503:50:409:178:47
10:16
#19911
25.2M
25.20 mi15:10:463:54:369:193:56
11:24
#19943
Finish
26.22 mi15:21:154:05:059:2110:29
10:17
#20043
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi192457356735619475(Top 73%)7381(Top 65%)7381(Top 612%)
10K6.21 mi3.10 mi18792+4537008+3487008+34818475(Top 69%)6755(Top 59%)6755(Top 560%)
15K9.32 mi3.11 mi19023-2317148-1407148-14019475(Top 73%)7381(Top 65%)7381(Top 612%)
20K12.43 mi3.11 mi19294-2717301-1537301-15320098(Top 75%)7727(Top 68%)7727(Top 640%)
Half13.11 mi0.68 mi19361-677344-437344-4320614(Top 77%)8027(Top 70%)8027(Top 665%)
25K15.53 mi2.42 mi19716-3557549-2057549-20520895(Top 78%)8212(Top 72%)8212(Top 680%)
30K18.64 mi3.11 mi19851-1357646-977646-9720251(Top 76%)7910(Top 69%)7910(Top 655%)
20M20.00 mi1.36 mi19866-157664-187664-1820179(Top 76%)7967(Top 70%)7967(Top 660%)
21M21.00 mi1.00 mi19832+347643+217643+2119393(Top 73%)7577(Top 66%)7577(Top 628%)
35K21.75 mi0.75 mi19840-87662-197662-1919974(Top 75%)7918(Top 69%)7918(Top 656%)
23M23.00 mi1.25 mi19808+327653+97653+919398(Top 73%)7630(Top 67%)7630(Top 632%)
24M24.00 mi1.00 mi19849-417682-297682-2920337(Top 76%)8173(Top 72%)8173(Top 677%)
40K24.85 mi0.85 mi19911-627732-507732-5020674(Top 78%)8425(Top 74%)8425(Top 698%)
25.2M25.20 mi0.35 mi19943-327755-237755-2321363(Top 80%)8782(Top 77%)8782(Top 728%)
Finish26.22 mi1.02 mi20043-1007823-687823-6822527(Top 85%)9402(Top 82%)9402(Top 779%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19475

Females

7381

F50-54

7381

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18475

Females

6755

F50-54

6755

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19475

Females

7381

F50-54

7381

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

20098

Females

7727

F50-54

7727

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20614

Females

8027

F50-54

8027

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

20895

Females

8212

F50-54

8212

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20251

Females

7910

F50-54

7910

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20179

Females

7967

F50-54

7967

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19393

Females

7577

F50-54

7577

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19974

Females

7918

F50-54

7918

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19398

Females

7630

F50-54

7630

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20337

Females

8173

F50-54

8173

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20674

Females

8425

F50-54

8425

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21363

Females

8782

F50-54

8782

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22527

Females

9402

F50-54

9402

Passing Analysis

Category:
Athletes Passed
1389
Passed By
2187
Net Change
-798
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19245
5K → 10K640187+453#19245#18792
10K → 15K101332-231#18792#19023
15K → 20K82353-271#19023#19294
20K → Half976-67#19294#19361
Half → 25K37392-355#19361#19716
25K → 30K121256-135#19716#19851
30K → 20M7792-15#19851#19866
20M → 21M10066+34#19866#19832
21M → 35K3846-8#19832#19840
35K → 23M8755+32#19840#19808
23M → 24M4081-41#19808#19849
24M → 40K3294-62#19849#19911
40K → 25.2M1244-32#19911#19943
25.2M → Finish13113-100#19943#20043
TOTALS13892187-798
📊

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