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BOSTON MARATHON 2023

Daphne Dadzie

Bib: 18626•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 25%
Masters (Masters Women)
#0 / 6539
Top 12%
Division (F40-44)
#0 / 1878
Top 25%
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
7:49/mi
24:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:45/mi
1:12:19
↑ 67↓ 78
20K· 12.43 mi
7:46/mi
1:36:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:41:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:00:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:25:15
↑ 181↓ 1480.2%
20M
8:03/mi
2:36:11
↑ 64↓ 500.2%
21M
8:49/mi
2:45:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:50:58
↑ 17↓ 861.7%
23M
8:14/mi
3:01:16
↑ 23↓ 630.6%
24M
7:58/mi
3:09:14
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:16:13
↓ 200.3%
25.2M
8:56/mi
3:19:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:27:38
↑ 22↓ 21

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
Time1:45:55
Pace8:05 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2924:187:4924:18
7:49
-
10K
6.21 mi11:39:2648:157:4623:57
7:43
-0:06
15K
9.32 mi12:03:301:12:197:4624:04
7:45
+0:02
20K
12.43 mi12:27:371:36:267:4624:07
7:46
+0:01
Half
13.11 mi12:32:541:41:437:465:17
7:45
-0:01
25K
15.53 mi12:51:502:00:397:4618:56
7:49
+0:04
30K
18.64 mi13:16:262:25:157:4824:36
7:55
+0:06
20M
20.00 mi13:27:222:36:117:4910:56
8:03
+0:08
21M
21.00 mi13:36:112:45:007:518:49
8:49
+0:46
35K
21.75 mi13:42:092:50:587:525:58
7:59
-0:50
23M
23.00 mi13:52:273:01:167:5310:18
8:14
+0:15
24M
24.00 mi14:00:253:09:147:537:58
7:58
-0:16
40K
24.85 mi14:07:243:16:137:546:59
8:10
+0:12
25.2M
25.20 mi14:10:293:19:187:553:05
8:56
+0:46
Finish
26.22 mi14:18:493:27:387:558:20
8:11
-0:45

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

7:43 /mi

Average Pace

7:55 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:44

94% of race

Time at Steady Pace

11:54

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi11:15:2924:187:4924:18
7:49
#12567
10K
6.21 mi11:39:2648:157:4623:57
7:43
#12413
15K
9.32 mi12:03:301:12:197:4624:04
7:45
#12306
20K
12.43 mi12:27:371:36:267:4624:07
7:46
#12040
Half
13.11 mi12:32:541:41:437:465:17
7:45
#12056
25K
15.53 mi12:51:502:00:397:4618:56
7:49
#11860
30K
18.64 mi13:16:262:25:157:4824:36
7:55
#11540
20M
20.00 mi13:27:222:36:117:4910:56
8:03
#11439
21M
21.00 mi13:36:112:45:007:518:49
8:49
#11495
35K
21.75 mi13:42:092:50:587:525:58
7:59
#11497
23M
23.00 mi13:52:273:01:167:5310:18
8:14
#11482
24M
24.00 mi14:00:253:09:147:537:58
7:58
#11452
40K
24.85 mi14:07:243:16:137:546:59
8:10
#11433
25.2M
25.20 mi14:10:293:19:187:553:05
8:56
#11440
Finish
26.22 mi14:18:493:27:387:558:20
8:11
#11493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi125673196319612270(Top 46%)3057(Top 27%)3057(Top 163%)
10K6.21 mi3.10 mi12413+1543109+873109+8712348(Top 46%)3062(Top 27%)3062(Top 163%)
15K9.32 mi3.11 mi12306+1073068+413068+4112270(Top 46%)3057(Top 27%)3057(Top 163%)
20K12.43 mi3.11 mi12040+2662935+1332935+13311431(Top 43%)2652(Top 23%)2652(Top 141%)
Half13.11 mi0.68 mi12056-162950-152950-1512275(Top 46%)3067(Top 27%)3067(Top 163%)
25K15.53 mi2.42 mi11860+1962848+1022848+10211180(Top 42%)2582(Top 23%)2582(Top 137%)
30K18.64 mi3.11 mi11540+3202710+1382710+13810294(Top 39%)2306(Top 20%)2306(Top 123%)
20M20.00 mi1.36 mi11439+1012681+292681+2910623(Top 40%)2549(Top 22%)2549(Top 136%)
21M21.00 mi1.00 mi11495-562725-442725-4412370(Top 46%)3606(Top 32%)3606(Top 192%)
35K21.75 mi0.75 mi11497-22747-222747-2211958(Top 45%)3394(Top 30%)3394(Top 181%)
23M23.00 mi1.25 mi11482+152760-132760-1311384(Top 43%)3199(Top 28%)3199(Top 170%)
24M24.00 mi1.00 mi11452+302764-42764-411025(Top 41%)3098(Top 27%)3098(Top 165%)
40K24.85 mi0.85 mi11433+192776-122776-1211158(Top 42%)3228(Top 28%)3228(Top 172%)
25.2M25.20 mi0.35 mi11440-72794-182794-1812199(Top 46%)3812(Top 33%)3812(Top 203%)
Finish26.22 mi1.02 mi11493-532848-542848-5413290(Top 50%)4349(Top 38%)4349(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12270

Females

3057

F40-44

3057

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12348

Females

3062

F40-44

3062

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12270

Females

3057

F40-44

3057

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

11431

Females

2652

F40-44

2652

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12275

Females

3067

F40-44

3067

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11180

Females

2582

F40-44

2582

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10294

Females

2306

F40-44

2306

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10623

Females

2549

F40-44

2549

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12370

Females

3606

F40-44

3606

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11958

Females

3394

F40-44

3394

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11384

Females

3199

F40-44

3199

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11025

Females

3098

F40-44

3098

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11158

Females

3228

F40-44

3228

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12199

Females

3812

F40-44

3812

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13290

Females

4349

F40-44

4349

Passing Analysis

Category:
Athletes Passed
2180
Passed By
1106
Net Change
+1074
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12567
5K → 10K390236+154#12567#12413
10K → 15K237130+107#12413#12306
15K → 20K32660+266#12306#12040
20K → Half2036-16#12040#12056
Half → 25K23842+196#12056#11860
25K → 30K36848+320#11860#11540
30K → 20M14342+101#11540#11439
20M → 21M74130-56#11439#11495
21M → 35K4749-2#11495#11497
35K → 23M10287+15#11497#11482
23M → 24M8050+30#11482#11452
24M → 40K7253+19#11452#11433
40K → 25.2M3037-7#11433#11440
25.2M → Finish53106-53#11440#11493
TOTALS21801106+1074
📊

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