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BOSTON MARATHON 2023

Allison Dease

Bib: 21448•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 29%
Division (F45-49)
#0 / 1817
Top 32%
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
8:19/mi
25:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:17/mi
51:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:16/mi
1:17:17
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:43:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:48:52
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:09:03
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:35:48
↑ 181↓ 1480.2%
20M
8:35/mi
2:47:28
↑ 64↓ 500.2%
21M
8:53/mi
2:56:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
3:02:28
↑ 17↓ 861.7%
23M
8:18/mi
3:12:51
↑ 23↓ 630.6%
24M
8:01/mi
3:20:52
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:27:51
↓ 200.3%
25.2M
8:36/mi
3:30:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:57/mi
3:38:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:52
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:50:03
Pace8:24 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0025:518:1925:51
8:19
-
10K
6.21 mi11:44:4451:358:1825:44
8:17
-0:02
15K
9.32 mi12:10:261:17:178:1825:42
8:16
-0:01
20K
12.43 mi12:36:241:43:158:1825:58
8:21
+0:05
Half
13.11 mi12:42:011:48:528:185:37
8:14
-0:07
25K
15.53 mi13:02:122:09:038:1820:11
8:19
+0:05
30K
18.64 mi13:28:572:35:488:2126:45
8:37
+0:18
20M
20.00 mi13:40:372:47:288:2211:40
8:35
-0:02
21M
21.00 mi13:49:302:56:218:248:53
8:53
+0:18
35K
21.75 mi13:55:373:02:288:236:07
8:11
-0:42
23M
23.00 mi14:06:003:12:518:2310:23
8:18
+0:07
24M
24.00 mi14:14:013:20:528:228:01
8:01
-0:17
40K
24.85 mi14:21:003:27:518:226:59
8:10
+0:09
25.2M
25.20 mi14:23:583:30:498:222:58
8:36
+0:26
Finish
26.22 mi14:32:043:38:558:218:06
7:57
-0:39

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

7:57 /mi

Average Pace

8:21 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:30:02

96% of race

Time at Steady Pace

8:53

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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 mi11:19:0025:518:1925:51
8:19
#16299
10K
6.21 mi11:44:4451:358:1825:44
8:17
#16517
15K
9.32 mi12:10:261:17:178:1825:42
8:16
#16460
20K
12.43 mi12:36:241:43:158:1825:58
8:21
#16345
Half
13.11 mi12:42:011:48:528:185:37
8:14
#16315
25K
15.53 mi13:02:122:09:038:1820:11
8:19
#16082
30K
18.64 mi13:28:572:35:488:2126:45
8:37
#15859
20M
20.00 mi13:40:372:47:288:2211:40
8:35
#15686
21M
21.00 mi13:49:302:56:218:248:53
8:53
#15520
35K
21.75 mi13:55:373:02:288:236:07
8:11
#15422
23M
23.00 mi14:06:003:12:518:2310:23
8:18
#15196
24M
24.00 mi14:14:013:20:528:228:01
8:01
#15029
40K
24.85 mi14:21:003:27:518:226:59
8:10
#14865
25.2M
25.20 mi14:23:583:30:498:222:58
8:36
#14778
Finish
26.22 mi14:32:043:38:558:218:06
7:57
#14670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi162995466546616361(Top 61%)5509(Top 48%)5509(Top 303%)
10K6.21 mi3.10 mi16517-2185587-1215587-12116807(Top 63%)5746(Top 50%)5746(Top 316%)
15K9.32 mi3.11 mi16460+575565+225565+2216361(Top 61%)5509(Top 48%)5509(Top 303%)
20K12.43 mi3.11 mi16345+1155518+475518+4715988(Top 60%)5335(Top 47%)5335(Top 294%)
Half13.11 mi0.68 mi16315+305499+195499+1916028(Top 60%)5296(Top 46%)5296(Top 291%)
25K15.53 mi2.42 mi16082+2335384+1155384+11515107(Top 57%)4912(Top 43%)4912(Top 270%)
30K18.64 mi3.11 mi15859+2235288+965288+9614978(Top 56%)4914(Top 43%)4914(Top 270%)
20M20.00 mi1.36 mi15686+1735198+905198+9014194(Top 53%)4536(Top 40%)4536(Top 250%)
21M21.00 mi1.00 mi15520+1665127+715127+7112792(Top 48%)3843(Top 34%)3843(Top 212%)
35K21.75 mi0.75 mi15422+985084+435084+4313324(Top 50%)4186(Top 37%)4186(Top 230%)
23M23.00 mi1.25 mi15196+2264961+1234961+12311878(Top 45%)3456(Top 30%)3456(Top 190%)
24M24.00 mi1.00 mi15029+1674873+884873+8811410(Top 43%)3305(Top 29%)3305(Top 182%)
40K24.85 mi0.85 mi14865+1644801+724801+7211198(Top 42%)3268(Top 29%)3268(Top 180%)
25.2M25.20 mi0.35 mi14778+874758+434758+4310293(Top 39%)2873(Top 25%)2873(Top 158%)
Finish26.22 mi1.02 mi14670+1084704+544704+5411784(Top 44%)3604(Top 32%)3604(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16361

Females

5509

F45-49

5509

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16807

Females

5746

F45-49

5746

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16361

Females

5509

F45-49

5509

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15988

Females

5335

F45-49

5335

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16028

Females

5296

F45-49

5296

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15107

Females

4912

F45-49

4912

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14978

Females

4914

F45-49

4914

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14194

Females

4536

F45-49

4536

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12792

Females

3843

F45-49

3843

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13324

Females

4186

F45-49

4186

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11878

Females

3456

F45-49

3456

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11410

Females

3305

F45-49

3305

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11198

Females

3268

F45-49

3268

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10293

Females

2873

F45-49

2873

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11784

Females

3604

F45-49

3604

Passing Analysis

Category:
Athletes Passed
2507
Passed By
878
Net Change
+1629
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16299
5K → 10K192410-218#16299#16517
10K → 15K224167+57#16517#16460
15K → 20K223108+115#16460#16345
20K → Half5424+30#16345#16315
Half → 25K27643+233#16315#16082
25K → 30K28057+223#16082#15859
30K → 20M18714+173#15859#15686
20M → 21M18216+166#15686#15520
21M → 35K1024+98#15520#15422
35K → 23M24014+226#15422#15196
23M → 24M1692+167#15196#15029
24M → 40K1651+164#15029#14865
40K → 25.2M903+87#14865#14778
25.2M → Finish12315+108#14778#14670
TOTALS2507878+1629
📊

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