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BOSTON MARATHON 2023

Marion Donald

Bib: 18021•F

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Division (F18-39)
#0 / 4884
Top 47%
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
7:40/mi
23:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:11:35
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:35:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:40:37
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:59:12
↑ 66↓ 880.2%
30K· 18.64 mi
8:06/mi
2:24:22
↑ 181↓ 1480.2%
20M
8:23/mi
2:35:45
↑ 64↓ 500.2%
21M
9:17/mi
2:45:02
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
2:51:20
↑ 17↓ 861.7%
23M
8:33/mi
3:02:02
↑ 23↓ 630.6%
24M
8:22/mi
3:10:24
↓ 821.3%
40K· 24.85 mi
8:54/mi
3:18:01
↓ 200.3%
25.2M
9:25/mi
3:21:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
3:30:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:37
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:49:24
Pace8:21 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4623:497:4023:49
7:40
-
10K
6.21 mi11:38:4047:437:4123:54
7:42
+0:02
15K
9.32 mi12:02:321:11:357:4123:52
7:41
-0:01
20K
12.43 mi12:26:241:35:277:4123:52
7:41
0:00
Half
13.11 mi12:31:341:40:377:405:10
7:34
-0:07
25K
15.53 mi12:50:091:59:127:4018:35
7:40
+0:06
30K
18.64 mi13:15:192:24:227:4525:10
8:06
+0:26
20M
20.00 mi13:26:422:35:457:4711:23
8:23
+0:17
21M
21.00 mi13:35:592:45:027:529:17
9:17
+0:54
35K
21.75 mi13:42:172:51:207:536:18
8:25
-0:52
23M
23.00 mi13:52:593:02:027:5510:42
8:33
+0:08
24M
24.00 mi14:01:213:10:247:568:22
8:22
-0:11
40K
24.85 mi14:08:583:18:017:587:37
8:54
+0:32
25.2M
25.20 mi14:12:133:21:167:593:15
9:25
+0:31
Finish
26.22 mi14:20:583:30:018:018:45
8:35
-0:50

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

7:34 /mi

Average Pace

8:01 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:12

57% of race

Time at Steady Pace

1:10:40

34% of race

Time at Slower Pace

20:09

10% of race

Average Pace: 8:01 /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 mi11:14:4623:497:4023:49
7:40
#11177
10K
6.21 mi11:38:4047:437:4123:54
7:42
#11621
15K
9.32 mi12:02:321:11:357:4123:52
7:41
#11620
20K
12.43 mi12:26:241:35:277:4123:52
7:41
#11359
Half
13.11 mi12:31:341:40:377:405:10
7:34
#11327
25K
15.53 mi12:50:091:59:127:4018:35
7:40
#11094
30K
18.64 mi13:15:192:24:227:4525:10
8:06
#11130
20M
20.00 mi13:26:422:35:457:4711:23
8:23
#11252
21M
21.00 mi13:35:592:45:027:529:17
9:17
#11507
35K
21.75 mi13:42:172:51:207:536:18
8:25
#11660
23M
23.00 mi13:52:593:02:027:5510:42
8:33
#11776
24M
24.00 mi14:01:213:10:247:568:22
8:22
#11861
40K
24.85 mi14:08:583:18:017:587:37
8:54
#12033
25.2M
25.20 mi14:12:133:21:167:593:15
9:25
#12078
Finish
26.22 mi14:20:583:30:018:018:45
8:35
#12268
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111772424242411721(Top 44%)2746(Top 24%)2746(Top 56%)
10K6.21 mi3.10 mi11621-4442664-2402664-24012180(Top 46%)2973(Top 26%)2973(Top 61%)
15K9.32 mi3.11 mi11620+12676-122676-1211721(Top 44%)2746(Top 24%)2746(Top 56%)
20K12.43 mi3.11 mi11359+2612531+1452531+14510796(Top 41%)2314(Top 20%)2314(Top 47%)
Half13.11 mi0.68 mi11327+322519+122519+1210901(Top 41%)2330(Top 20%)2330(Top 48%)
25K15.53 mi2.42 mi11094+2332407+1122407+11210050(Top 38%)2026(Top 18%)2026(Top 41%)
30K18.64 mi3.11 mi11130-362483-762483-7611652(Top 44%)2995(Top 26%)2995(Top 61%)
20M20.00 mi1.36 mi11252-1222571-882571-8812880(Top 48%)3790(Top 33%)3790(Top 78%)
21M21.00 mi1.00 mi11507-2552734-1632734-16314896(Top 56%)4985(Top 44%)4985(Top 102%)
35K21.75 mi0.75 mi11660-1532833-992833-9914849(Top 56%)5004(Top 44%)5004(Top 102%)
23M23.00 mi1.25 mi11776-1162922-892922-8913509(Top 51%)4340(Top 38%)4340(Top 89%)
24M24.00 mi1.00 mi11861-852988-662988-6613645(Top 51%)4464(Top 39%)4464(Top 91%)
40K24.85 mi0.85 mi12033-1723121-1333121-13315665(Top 59%)5657(Top 50%)5657(Top 116%)
25.2M25.20 mi0.35 mi12078-453155-343155-3414831(Top 56%)5189(Top 45%)5189(Top 106%)
Finish26.22 mi1.02 mi12268-1903273-1183273-11815913(Top 60%)5748(Top 50%)5748(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11721

Females

2746

F18-39

2746

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12180

Females

2973

F18-39

2973

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11721

Females

2746

F18-39

2746

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10796

Females

2314

F18-39

2314

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10901

Females

2330

F18-39

2330

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10050

Females

2026

F18-39

2026

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11652

Females

2995

F18-39

2995

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12880

Females

3790

F18-39

3790

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14896

Females

4985

F18-39

4985

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14849

Females

5004

F18-39

5004

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13509

Females

4340

F18-39

4340

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13645

Females

4464

F18-39

4464

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15665

Females

5657

F18-39

5657

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14831

Females

5189

F18-39

5189

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15913

Females

5748

F18-39

5748

Passing Analysis

Category:
Athletes Passed
1394
Passed By
2485
Net Change
-1091
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11177
5K → 10K143587-444#11177#11621
10K → 15K187186+1#11621#11620
15K → 20K30847+261#11620#11359
20K → Half4816+32#11359#11327
Half → 25K26229+233#11327#11094
25K → 30K168204-36#11094#11130
30K → 20M55177-122#11130#11252
20M → 21M35290-255#11252#11507
21M → 35K17170-153#11507#11660
35K → 23M60176-116#11660#11776
23M → 24M40125-85#11776#11861
24M → 40K26198-172#11861#12033
40K → 25.2M1762-45#12033#12078
25.2M → Finish28218-190#12078#12268
TOTALS13942485-1091
📊

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