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BOSTON MARATHON 2023

Madeleine Marshall

Bib: 16022•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 50%
Gender (Female)
#0 / 11423
Top 34%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:22
Rank: #12794
Start → 5K
7:51/mi
24:22 split
10K· 6.21 mi
48:08
Rank: #12244 (+550)
5K → 10K
7:39/mi
23:46 split
15K· 9.32 mi
1:12:04
Rank: #12095 (+149)
10K → 15K
7:42/mi
23:56 split
20K· 12.43 mi
1:36:26
Rank: #12043 (+52)
15K → 20K
7:51/mi
24:22 split
Half· 13.11 mi
1:41:43
Rank: #12058 (-15)
20K → Half
7:45/mi
5:17 split
25K· 15.53 mi
2:01:12
Rank: #12195 (-137)
Half → 25K
8:02/mi
19:29 split
30K· 18.64 mi
2:28:45
Rank: #13141 (-946)
25K → 30K
8:52/mi
27:33 split
20M
2:40:34
Rank: #13272 (-131)
30K → 20M
8:42/mi
11:49 split
21M
2:49:46
Rank: #13334 (-62)
20M → 21M
9:12/mi
9:12 split
35K· 21.75 mi
2:55:48
Rank: #13282 (+52)
21M → 35K
8:04/mi
6:02 split
23M
3:06:40
Rank: #13327 (-45)
35K → 23M
8:41/mi
10:52 split
24M
3:15:01
Rank: #13308 (+19)
23M → 24M
8:21/mi
8:21 split
40K· 24.85 mi
3:22:18
Rank: #13295 (+13)
24M → 40K
8:31/mi
7:17 split
25.2M
3:25:26
Rank: #13263 (+32)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:33:46
Rank: #13265 (-2)
25.2M → Finish
8:11/mi
8:20 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:43
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:52:03
Pace8:33 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4124:227:5124:22
7:51
-
10K
6.21 mi11:38:2748:087:4523:46
7:39
-0:12
15K
9.32 mi12:02:231:12:047:4423:56
7:42
+0:03
20K
12.43 mi12:26:451:36:267:4624:22
7:51
+0:09
Half
13.11 mi12:32:021:41:437:465:17
7:45
-0:06
25K
15.53 mi12:51:312:01:127:4819:29
8:02
+0:17
30K
18.64 mi13:19:042:28:457:5927:33
8:52
+0:50
20M
20.00 mi13:30:532:40:348:0211:49
8:42
-0:10
21M
21.00 mi13:40:052:49:468:059:12
9:12
+0:30
35K
21.75 mi13:46:072:55:488:056:02
8:04
-1:08
23M
23.00 mi13:56:593:06:408:0710:52
8:41
+0:37
24M
24.00 mi14:05:203:15:018:088:21
8:21
-0:20
40K
24.85 mi14:12:373:22:188:087:17
8:31
+0:10
25.2M
25.20 mi14:15:453:25:268:093:08
9:05
+0:34
Finish
26.22 mi14:24:053:33:468:108:20
8:11
-0:54

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

7:39 /mi

Average Pace

8:10 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:43

48% of race

Time at Steady Pace

42:12

20% of race

Time at Slower Pace

1:09:51

33% of race

Average Pace: 8:09 /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 mi11:14:4124:227:5124:22
7:51
#12794
10K
6.21 mi11:38:2748:087:4523:46
7:39
#12244
15K
9.32 mi12:02:231:12:047:4423:56
7:42
#12095
20K
12.43 mi12:26:451:36:267:4624:22
7:51
#12043
Half
13.11 mi12:32:021:41:437:465:17
7:45
#12058
25K
15.53 mi12:51:312:01:127:4819:29
8:02
#12195
30K
18.64 mi13:19:042:28:457:5927:33
8:52
#13141
20M
20.00 mi13:30:532:40:348:0211:49
8:42
#13272
21M
21.00 mi13:40:052:49:468:059:12
9:12
#13334
35K
21.75 mi13:46:072:55:488:056:02
8:04
#13282
23M
23.00 mi13:56:593:06:408:0710:52
8:41
#13327
24M
24.00 mi14:05:203:15:018:088:21
8:21
#13308
40K
24.85 mi14:12:373:22:188:087:17
8:31
#13295
25.2M
25.20 mi14:15:453:25:268:093:08
9:05
#13263
Finish
26.22 mi14:24:053:33:468:108:20
8:11
#13265
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi127943325332511890(Top 45%)2847(Top 25%)2847(Top 58%)
10K6.21 mi3.10 mi12244+5503000+3253000+32511807(Top 44%)2766(Top 24%)2766(Top 57%)
15K9.32 mi3.11 mi12095+1492948+522948+5211890(Top 45%)2847(Top 25%)2847(Top 58%)
20K12.43 mi3.11 mi12043+522938+102938+1012121(Top 46%)3044(Top 27%)3044(Top 62%)
Half13.11 mi0.68 mi12058-152952-142952-1412334(Top 46%)3126(Top 27%)3126(Top 64%)
25K15.53 mi2.42 mi12195-1373051-993051-9913052(Top 49%)3659(Top 32%)3659(Top 75%)
30K18.64 mi3.11 mi13141-9463635-5843635-58416466(Top 62%)5764(Top 50%)5764(Top 118%)
20M20.00 mi1.36 mi13272-1313718-833718-8314839(Top 56%)4900(Top 43%)4900(Top 100%)
21M21.00 mi1.00 mi13334-623772-543772-5414492(Top 54%)4755(Top 42%)4755(Top 97%)
35K21.75 mi0.75 mi13282+523761+113761+1112614(Top 47%)3775(Top 33%)3775(Top 77%)
23M23.00 mi1.25 mi13327-453812-513812-5114254(Top 54%)4754(Top 42%)4754(Top 97%)
24M24.00 mi1.00 mi13308+193820-83820-813548(Top 51%)4417(Top 39%)4417(Top 90%)
40K24.85 mi0.85 mi13295+133837-173837-1713481(Top 51%)4458(Top 39%)4458(Top 91%)
25.2M25.20 mi0.35 mi13263+323830+73830+713055(Top 49%)4253(Top 37%)4253(Top 87%)
Finish26.22 mi1.02 mi13265-23858-283858-2813306(Top 50%)4365(Top 38%)4365(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11890

Females

2847

F18-39

2847

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11807

Females

2766

F18-39

2766

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11890

Females

2847

F18-39

2847

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12121

Females

3044

F18-39

3044

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12334

Females

3126

F18-39

3126

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13052

Females

3659

F18-39

3659

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16466

Females

5764

F18-39

5764

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14839

Females

4900

F18-39

4900

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14492

Females

4755

F18-39

4755

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12614

Females

3775

F18-39

3775

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14254

Females

4754

F18-39

4754

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13548

Females

4417

F18-39

4417

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13481

Females

4458

F18-39

4458

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13055

Females

4253

F18-39

4253

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13306

Females

4365

F18-39

4365

Passing Analysis

Category:
Athletes Passed
1821
Passed By
2292
Net Change
-471
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12794
5K → 10K678128+550#12794#12244
10K → 15K271122+149#12244#12095
15K → 20K194142+52#12095#12043
20K → Half2035-15#12043#12058
Half → 25K84221-137#12058#12195
25K → 30K41987-946#12195#13141
30K → 20M56187-131#13141#13272
20M → 21M62124-62#13272#13334
21M → 35K7725+52#13334#13282
35K → 23M81126-45#13282#13327
23M → 24M7859+19#13327#13308
24M → 40K6552+13#13308#13295
40K → 25.2M5018+32#13295#13263
25.2M → Finish6466-2#13263#13265
TOTALS18212292-471
📊

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