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BOSTON MARATHON 2023

Rylie Dalzell

Bib: 26451•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
11:37/mi
36:04
↑ 97↓ 3451.5%
10K· 6.21 mi
11:42/mi
1:12:24
↑ 79↓ 1380.4%
15K· 9.32 mi
11:36/mi
1:48:26
↑ 67↓ 78
20K· 12.43 mi
11:48/mi
2:25:05
↑ 106↓ 860.1%
Half· 13.11 mi
11:44/mi
2:33:05
↑ 19↓ 370.5%
25K· 15.53 mi
12:06/mi
3:02:25
↑ 66↓ 880.2%
30K· 18.64 mi
12:51/mi
3:42:21
↑ 181↓ 1480.2%
20M
12:59/mi
4:00:00
↑ 64↓ 500.2%
21M
13:23/mi
4:13:23
↑ 106↓ 241.6%
35K· 21.75 mi
13:23/mi
4:23:24
↑ 17↓ 861.7%
23M
13:19/mi
4:40:05
↑ 23↓ 630.6%
24M
12:36/mi
4:52:41
↓ 821.3%
40K· 24.85 mi
12:23/mi
5:03:16
↓ 200.3%
25.2M
12:28/mi
5:07:34
↑ 13↓ 160.2%
Finish· 26.22 mi
11:03/mi
5:18:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:33:05
Pace11:41 /mi
2nd Half
Distance13.11 mi
Time2:45:45
Pace12:39 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2736:0411:3736:04
11:37
-
10K
6.21 mi12:28:471:12:2411:3936:20
11:42
+0:05
15K
9.32 mi13:04:491:48:2611:3836:02
11:36
-0:06
20K
12.43 mi13:41:282:25:0511:4036:39
11:48
+0:12
Half
13.11 mi13:49:282:33:0511:418:00
11:44
-0:04
25K
15.53 mi14:18:483:02:2511:4529:20
12:06
+0:22
30K
18.64 mi14:58:443:42:2111:5639:56
12:51
+0:45
20M
20.00 mi15:16:234:00:0012:0017:39
12:59
+0:08
21M
21.00 mi15:29:464:13:2312:0413:23
13:23
+0:24
35K
21.75 mi15:39:474:23:2412:0710:01
13:23
0:00
23M
23.00 mi15:56:284:40:0512:1116:41
13:19
-0:04
24M
24.00 mi16:09:044:52:4112:1212:36
12:36
-0:43
40K
24.85 mi16:19:395:03:1612:1210:35
12:23
-0:13
25.2M
25.20 mi16:23:575:07:3412:124:18
12:28
+0:05
Finish
26.22 mi16:35:135:18:5012:1011:16
11:03
-1:25

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

11:03 /mi

Average Pace

12:10 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:21

52% of race

Time at Steady Pace

56:49

18% of race

Time at Slower Pace

1:37:40

31% of race

Average Pace: 12:10 /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 mi11:52:2736:0411:3736:04
11:37
#26275
10K
6.21 mi12:28:471:12:2411:3936:20
11:42
#26199
15K
9.32 mi13:04:491:48:2611:3836:02
11:36
#26071
20K
12.43 mi13:41:282:25:0511:4036:39
11:48
#25941
Half
13.11 mi13:49:282:33:0511:418:00
11:44
#25924
25K
15.53 mi14:18:483:02:2511:4529:20
12:06
#25823
30K
18.64 mi14:58:443:42:2111:5639:56
12:51
#25730
20M
20.00 mi15:16:234:00:0012:0017:39
12:59
#25694
21M
21.00 mi15:29:464:13:2312:0413:23
13:23
#25653
35K
21.75 mi15:39:474:23:2412:0710:01
13:23
#25658
23M
23.00 mi15:56:284:40:0512:1116:41
13:19
#25655
24M
24.00 mi16:09:044:52:4112:1212:36
12:36
#25658
40K
24.85 mi16:19:395:03:1612:1210:35
12:23
#25614
25.2M
25.20 mi16:23:575:07:3412:124:18
12:28
#25586
Finish
26.22 mi16:35:135:18:5012:1011:16
11:03
#25552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26275112131121325794(Top 97%)10917(Top 96%)10917(Top 224%)
10K6.21 mi3.10 mi26199+7611165+4811165+4826100(Top 98%)11107(Top 97%)11107(Top 227%)
15K9.32 mi3.11 mi26071+12811083+8211083+8225794(Top 97%)10917(Top 96%)10917(Top 224%)
20K12.43 mi3.11 mi25941+13010999+8410999+8425526(Top 96%)10786(Top 94%)10786(Top 221%)
Half13.11 mi0.68 mi25924+1710990+910990+925677(Top 96%)10890(Top 95%)10890(Top 223%)
25K15.53 mi2.42 mi25823+10110942+4810942+4825241(Top 95%)10651(Top 93%)10651(Top 218%)
30K18.64 mi3.11 mi25730+9310899+4310899+4325296(Top 95%)10735(Top 94%)10735(Top 220%)
20M20.00 mi1.36 mi25694+3610887+1210887+1225162(Top 95%)10678(Top 93%)10678(Top 219%)
21M21.00 mi1.00 mi25653+4110862+2510862+2524484(Top 92%)10334(Top 90%)10334(Top 212%)
35K21.75 mi0.75 mi25658-510873-1110873-1125815(Top 97%)11049(Top 97%)11049(Top 226%)
23M23.00 mi1.25 mi25655+3108731087325385(Top 95%)10839(Top 95%)10839(Top 222%)
24M24.00 mi1.00 mi25658-310881-810881-825166(Top 95%)10765(Top 94%)10765(Top 220%)
40K24.85 mi0.85 mi25614+4410858+2310858+2324323(Top 91%)10351(Top 91%)10351(Top 212%)
25.2M25.20 mi0.35 mi25586+2810848+1010848+1023277(Top 87%)9823(Top 86%)9823(Top 201%)
Finish26.22 mi1.02 mi25552+3410839+910839+924089(Top 90%)10209(Top 89%)10209(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

25794

Females

10917

F18-39

10917

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

26100

Females

11107

F18-39

11107

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

25794

Females

10917

F18-39

10917

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25526

Females

10786

F18-39

10786

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25677

Females

10890

F18-39

10890

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25241

Females

10651

F18-39

10651

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25296

Females

10735

F18-39

10735

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

25162

Females

10678

F18-39

10678

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24484

Females

10334

F18-39

10334

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25815

Females

11049

F18-39

11049

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

25385

Females

10839

F18-39

10839

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25166

Females

10765

F18-39

10765

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24323

Females

10351

F18-39

10351

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23277

Females

9823

F18-39

9823

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

24089

Females

10209

F18-39

10209

Passing Analysis

Category:
Athletes Passed
883
Passed By
160
Net Change
+723
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26275
5K → 10K10832+76#26275#26199
10K → 15K13810+128#26199#26071
15K → 20K14111+130#26071#25941
20K → Half214+17#25941#25924
Half → 25K1065+101#25924#25823
25K → 30K10714+93#25823#25730
30K → 20M4711+36#25730#25694
20M → 21M465+41#25694#25653
21M → 35K1419-5#25653#25658
35K → 23M2219+3#25658#25655
23M → 24M1922-3#25655#25658
24M → 40K451+44#25658#25614
40K → 25.2M280+28#25614#25586
25.2M → Finish417+34#25586#25552
TOTALS883160+723
📊

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