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BOSTON MARATHON 2023

Denise Dalton

Bib: 31962•F

IL

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
Top 50%
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
8:57/mi
27:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:31/mi
54:16
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:21:12
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:48:37
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:54:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:16:06
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
2:44:40
↑ 181↓ 1480.2%
20M
9:00/mi
2:56:54
↑ 64↓ 500.2%
21M
9:40/mi
3:06:34
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
3:13:14
↑ 17↓ 861.7%
23M
9:13/mi
3:24:47
↑ 23↓ 630.6%
24M
8:54/mi
3:33:41
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:41:29
↓ 200.3%
25.2M
9:49/mi
3:44:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:53:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:33
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time1:59:18
Pace9:06 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4327:478:5727:47
8:57
-
10K
6.21 mi12:14:1254:168:4426:29
8:31
-0:26
15K
9.32 mi12:41:081:21:128:4326:56
8:40
+0:09
20K
12.43 mi13:08:331:48:378:4427:25
8:49
+0:09
Half
13.11 mi13:14:291:54:338:445:56
8:42
-0:07
25K
15.53 mi13:36:022:16:068:4621:33
8:53
+0:11
30K
18.64 mi14:04:362:44:408:5028:34
9:12
+0:19
20M
20.00 mi14:16:502:56:548:5112:14
9:00
-0:12
21M
21.00 mi14:26:303:06:348:539:40
9:40
+0:40
35K
21.75 mi14:33:103:13:148:536:40
8:55
-0:45
23M
23.00 mi14:44:433:24:478:5411:33
9:13
+0:18
24M
24.00 mi14:53:373:33:418:548:54
8:54
-0:19
40K
24.85 mi15:01:253:41:298:557:48
9:07
+0:13
25.2M
25.20 mi15:04:483:44:528:553:23
9:49
+0:42
Finish
26.22 mi15:13:473:53:518:568:59
8:49
-1:00

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

8:31 /mi

Average Pace

8:56 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:40:48

94% of race

Time at Steady Pace

13:03

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:55 /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 mi11:47:4327:478:5727:47
8:57
#20188
10K
6.21 mi12:14:1254:168:4426:29
8:31
#19326
15K
9.32 mi12:41:081:21:128:4326:56
8:40
#19113
20K
12.43 mi13:08:331:48:378:4427:25
8:49
#19016
Half
13.11 mi13:14:291:54:338:445:56
8:42
#19018
25K
15.53 mi13:36:022:16:068:4621:33
8:53
#18902
30K
18.64 mi14:04:362:44:408:5028:34
9:12
#18757
20M
20.00 mi14:16:502:56:548:5112:14
9:00
#18583
21M
21.00 mi14:26:303:06:348:539:40
9:40
#18452
35K
21.75 mi14:33:103:13:148:536:40
8:55
#18403
23M
23.00 mi14:44:433:24:478:5411:33
9:13
#18321
24M
24.00 mi14:53:373:33:418:548:54
8:54
#18260
40K
24.85 mi15:01:253:41:298:557:48
9:07
#18206
25.2M
25.20 mi15:04:483:44:528:553:23
9:49
#18189
Finish
26.22 mi15:13:473:53:518:568:59
8:49
#18146
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi201887930793018840(Top 71%)7003(Top 61%)7003(Top 580%)
10K6.21 mi3.10 mi19326+8627352+5787352+57818411(Top 69%)6723(Top 59%)6723(Top 557%)
15K9.32 mi3.11 mi19113+2137199+1537199+15318840(Top 71%)7003(Top 61%)7003(Top 580%)
20K12.43 mi3.11 mi19016+977133+667133+6618813(Top 71%)6971(Top 61%)6971(Top 578%)
Half13.11 mi0.68 mi19018-27134-17134-118953(Top 71%)7052(Top 62%)7052(Top 584%)
25K15.53 mi2.42 mi18902+1167063+717063+7118402(Top 69%)6788(Top 59%)6788(Top 562%)
30K18.64 mi3.11 mi18757+1457004+597004+5918150(Top 68%)6735(Top 59%)6735(Top 558%)
20M20.00 mi1.36 mi18583+1746922+826922+8216579(Top 62%)5916(Top 52%)5916(Top 490%)
21M21.00 mi1.00 mi18452+1316856+666856+6616737(Top 63%)6040(Top 53%)6040(Top 500%)
35K21.75 mi0.75 mi18403+496836+206836+2017535(Top 66%)6577(Top 58%)6577(Top 545%)
23M23.00 mi1.25 mi18321+826803+336803+3317193(Top 65%)6395(Top 56%)6395(Top 530%)
24M24.00 mi1.00 mi18260+616779+246779+2416791(Top 63%)6247(Top 55%)6247(Top 518%)
40K24.85 mi0.85 mi18206+546761+186761+1816757(Top 63%)6269(Top 55%)6269(Top 519%)
25.2M25.20 mi0.35 mi18189+176751+106751+1016661(Top 63%)6250(Top 55%)6250(Top 518%)
Finish26.22 mi1.02 mi18146+436734+176734+1717144(Top 64%)6459(Top 57%)6459(Top 535%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18840

Females

7003

F50-54

7003

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18411

Females

6723

F50-54

6723

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18840

Females

7003

F50-54

7003

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18813

Females

6971

F50-54

6971

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18953

Females

7052

F50-54

7052

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18402

Females

6788

F50-54

6788

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18150

Females

6735

F50-54

6735

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16579

Females

5916

F50-54

5916

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16737

Females

6040

F50-54

6040

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17535

Females

6577

F50-54

6577

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17193

Females

6395

F50-54

6395

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16791

Females

6247

F50-54

6247

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16757

Females

6269

F50-54

6269

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16661

Females

6250

F50-54

6250

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

17144

Females

6459

F50-54

6459

Passing Analysis

Category:
Athletes Passed
2716
Passed By
674
Net Change
+2042
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20188
5K → 10K95088+862#20188#19326
10K → 15K30996+213#19326#19113
15K → 20K208111+97#19113#19016
20K → Half2224-2#19016#19018
Half → 25K18064+116#19018#18902
25K → 30K23489+145#18902#18757
30K → 20M19016+174#18757#18583
20M → 21M16231+131#18583#18452
21M → 35K7425+49#18452#18403
35K → 23M11634+82#18403#18321
23M → 24M8423+61#18321#18260
24M → 40K7925+54#18260#18206
40K → 25.2M3114+17#18206#18189
25.2M → Finish7734+43#18189#18146
TOTALS2716674+2042
📊

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