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BOSTON MARATHON 2023

Alli Parker

Bib: 18466•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Masters (Masters Women)
#0 / 6539
Top 35%
Division (F50-54)
#0 / 1207
Top 27%
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
8:02/mi
24:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:15:02
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:41:08
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:46:40
↑ 19↓ 370.5%
25K· 15.53 mi
8:41/mi
2:07:43
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:36:25
↑ 181↓ 1480.2%
20M
8:57/mi
2:48:35
↑ 64↓ 500.2%
21M
9:24/mi
2:57:59
↑ 106↓ 241.6%
35K· 21.75 mi
8:21/mi
3:04:14
↑ 17↓ 861.7%
23M
8:55/mi
3:15:24
↑ 23↓ 630.6%
24M
8:37/mi
3:24:01
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:31:22
↓ 200.3%
25.2M
9:17/mi
3:34:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:42:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:40
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:56:18
Pace8:52 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0424:588:0224:58
8:02
-
10K
6.21 mi11:40:4349:377:5924:39
7:56
-0:06
15K
9.32 mi12:06:081:15:028:0325:25
8:11
+0:15
20K
12.43 mi12:32:141:41:088:0826:06
8:24
+0:13
Half
13.11 mi12:37:461:46:408:085:32
8:07
-0:17
25K
15.53 mi12:58:492:07:438:1321:03
8:41
+0:34
30K
18.64 mi13:27:312:36:258:2328:42
9:14
+0:33
20M
20.00 mi13:39:412:48:358:2612:10
8:57
-0:17
21M
21.00 mi13:49:052:57:598:299:24
9:24
+0:27
35K
21.75 mi13:55:203:04:148:286:15
8:21
-1:03
23M
23.00 mi14:06:303:15:248:3011:10
8:55
+0:34
24M
24.00 mi14:15:073:24:018:308:37
8:37
-0:18
40K
24.85 mi14:22:283:31:228:307:21
8:36
-0:01
25.2M
25.20 mi14:25:403:34:348:313:12
9:17
+0:41
Finish
26.22 mi14:34:043:42:588:318:24
8:15
-1:02

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

7:56 /mi

Average Pace

8:31 /mi

Slowest Pace

9:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:20

71% of race

Time at Steady Pace

55:14

25% of race

Time at Slower Pace

9:24

4% of race

Average Pace: 8:30 /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 mi11:16:0424:588:0224:58
8:02
#14283
10K
6.21 mi11:40:4349:377:5924:39
7:56
#14281
15K
9.32 mi12:06:081:15:028:0325:25
8:11
#14757
20K
12.43 mi12:32:141:41:088:0826:06
8:24
#15162
Half
13.11 mi12:37:461:46:408:085:32
8:07
#15154
25K
15.53 mi12:58:492:07:438:1321:03
8:41
#15505
30K
18.64 mi13:27:312:36:258:2328:42
9:14
#16089
20M
20.00 mi13:39:412:48:358:2612:10
8:57
#16096
21M
21.00 mi13:49:052:57:598:299:24
9:24
#16028
35K
21.75 mi13:55:203:04:148:286:15
8:21
#15947
23M
23.00 mi14:06:303:15:248:3011:10
8:55
#15932
24M
24.00 mi14:15:073:24:018:308:37
8:37
#15889
40K
24.85 mi14:22:283:31:228:307:21
8:36
#15803
25.2M
25.20 mi14:25:403:34:348:313:12
9:17
#15772
Finish
26.22 mi14:34:043:42:588:318:24
8:15
#15674
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi142834198419815726(Top 59%)5125(Top 45%)5125(Top 425%)
10K6.21 mi3.10 mi14281+24217-194217-1914301(Top 54%)4241(Top 37%)4241(Top 351%)
15K9.32 mi3.11 mi14757-4764511-2944511-29415726(Top 59%)5125(Top 45%)5125(Top 425%)
20K12.43 mi3.11 mi15162-4054786-2754786-27516255(Top 61%)5500(Top 48%)5500(Top 456%)
Half13.11 mi0.68 mi15154+84776+104776+1015270(Top 57%)4855(Top 43%)4855(Top 402%)
25K15.53 mi2.42 mi15505-3515032-2565032-25617282(Top 65%)6155(Top 54%)6155(Top 510%)
30K18.64 mi3.11 mi16089-5845428-3965428-39618340(Top 69%)6830(Top 60%)6830(Top 566%)
20M20.00 mi1.36 mi16096-75449-215449-2116290(Top 61%)5739(Top 50%)5739(Top 475%)
21M21.00 mi1.00 mi16028+685432+175432+1715488(Top 58%)5343(Top 47%)5343(Top 443%)
35K21.75 mi0.75 mi15947+815398+345398+3414490(Top 54%)4842(Top 42%)4842(Top 401%)
23M23.00 mi1.25 mi15932+155423-255423-2515641(Top 59%)5539(Top 48%)5539(Top 459%)
24M24.00 mi1.00 mi15889+435411+125411+1215186(Top 57%)5337(Top 47%)5337(Top 442%)
40K24.85 mi0.85 mi15803+865366+455366+4513972(Top 52%)4735(Top 41%)4735(Top 392%)
25.2M25.20 mi0.35 mi15772+315350+165350+1614161(Top 53%)4845(Top 42%)4845(Top 401%)
Finish26.22 mi1.02 mi15674+985294+565294+5613754(Top 52%)4613(Top 40%)4613(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15726

Females

5125

F50-54

5125

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14301

Females

4241

F50-54

4241

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15726

Females

5125

F50-54

5125

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

16255

Females

5500

F50-54

5500

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

15270

Females

4855

F50-54

4855

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17282

Females

6155

F50-54

6155

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18340

Females

6830

F50-54

6830

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16290

Females

5739

F50-54

5739

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15488

Females

5343

F50-54

5343

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14490

Females

4842

F50-54

4842

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15641

Females

5539

F50-54

5539

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15186

Females

5337

F50-54

5337

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13972

Females

4735

F50-54

4735

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14161

Females

4845

F50-54

4845

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13754

Females

4613

F50-54

4613

Passing Analysis

Category:
Athletes Passed
1316
Passed By
2707
Net Change
-1391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14283
5K → 10K284282+2#14283#14281
10K → 15K69545-476#14281#14757
15K → 20K83488-405#14757#15162
20K → Half3931+8#15162#15154
Half → 25K55406-351#15154#15505
25K → 30K55639-584#15505#16089
30K → 20M8087-7#16089#16096
20M → 21M11042+68#16096#16028
21M → 35K9312+81#16028#15947
35K → 23M9782+15#15947#15932
23M → 24M9148+43#15932#15889
24M → 40K10822+86#15889#15803
40K → 25.2M409+31#15803#15772
25.2M → Finish11214+98#15772#15674
TOTALS13162707-1391
📊

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