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BOSTON MARATHON 2023

Allison Lehnen

Bib: 12378•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 24%
Masters (Masters Women)
#0 / 6539
Top 11%
Division (F40-44)
#0 / 1878
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:22
Rank: #9828
Start → 5K
7:31/mi
23:22 split
10K· 6.21 mi
46:41
Rank: #10170 (-342)
5K → 10K
7:30/mi
23:19 split
15K· 9.32 mi
1:09:34
Rank: #9732 (+438)
10K → 15K
7:22/mi
22:53 split
20K· 12.43 mi
1:33:03
Rank: #9716 (+16)
15K → 20K
7:34/mi
23:29 split
Half· 13.11 mi
1:38:12
Rank: #9776 (-60)
20K → Half
7:33/mi
5:09 split
25K· 15.53 mi
1:56:42
Rank: #9763 (+13)
Half → 25K
7:38/mi
18:30 split
30K· 18.64 mi
2:21:46
Rank: #10014 (-251)
25K → 30K
8:04/mi
25:04 split
20M
2:32:48
Rank: #10079 (-65)
30K → 20M
8:07/mi
11:02 split
21M
2:41:46
Rank: #10245 (-166)
20M → 21M
8:58/mi
8:58 split
35K· 21.75 mi
2:47:57
Rank: #10378 (-133)
21M → 35K
8:16/mi
6:11 split
23M
2:58:40
Rank: #10553 (-175)
35K → 23M
8:34/mi
10:43 split
24M
3:07:03
Rank: #10698 (-145)
23M → 24M
8:23/mi
8:23 split
40K· 24.85 mi
3:14:31
Rank: #10844 (-146)
24M → 40K
8:44/mi
7:28 split
25.2M
3:17:52
Rank: #10945 (-101)
40K → 25.2M
9:43/mi
3:21 split
Finish· 26.22 mi
3:26:42
Rank: #11198 (-253)
25.2M → Finish
8:40/mi
8:50 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:12
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:48:30
Pace8:17 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3923:227:3123:22
7:31
-
10K
6.21 mi11:13:5846:417:3123:19
7:30
-0:01
15K
9.32 mi11:36:511:09:347:2822:53
7:22
-0:08
20K
12.43 mi12:00:201:33:037:2923:29
7:34
+0:12
Half
13.11 mi12:05:291:38:127:295:09
7:33
-0:01
25K
15.53 mi12:23:591:56:427:3118:30
7:38
+0:05
30K
18.64 mi12:49:032:21:467:3625:04
8:04
+0:26
20M
20.00 mi13:00:052:32:487:3811:02
8:07
+0:03
21M
21.00 mi13:09:032:41:467:428:58
8:58
+0:51
35K
21.75 mi13:15:142:47:577:436:11
8:16
-0:42
23M
23.00 mi13:25:572:58:407:4610:43
8:34
+0:18
24M
24.00 mi13:34:203:07:037:488:23
8:23
-0:11
40K
24.85 mi13:41:483:14:317:507:28
8:44
+0:21
25.2M
25.20 mi13:45:093:17:527:513:21
9:43
+0:59
Finish
26.22 mi13:53:593:26:427:538:50
8:40
-1:03

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

7:22 /mi

Average Pace

7:53 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:42

56% of race

Time at Steady Pace

50:40

25% of race

Time at Slower Pace

39:20

19% of race

Average Pace: 7:53 /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 mi10:50:3923:227:3123:22
7:31
#9828
10K
6.21 mi11:13:5846:417:3123:19
7:30
#10170
15K
9.32 mi11:36:511:09:347:2822:53
7:22
#9732
20K
12.43 mi12:00:201:33:037:2923:29
7:34
#9716
Half
13.11 mi12:05:291:38:127:295:09
7:33
#9776
25K
15.53 mi12:23:591:56:427:3118:30
7:38
#9763
30K
18.64 mi12:49:032:21:467:3625:04
8:04
#10014
20M
20.00 mi13:00:052:32:487:3811:02
8:07
#10079
21M
21.00 mi13:09:032:41:467:428:58
8:58
#10245
35K
21.75 mi13:15:142:47:577:436:11
8:16
#10378
23M
23.00 mi13:25:572:58:407:4610:43
8:34
#10553
24M
24.00 mi13:34:203:07:037:488:23
8:23
#10698
40K
24.85 mi13:41:483:14:317:507:28
8:44
#10844
25.2M
25.20 mi13:45:093:17:527:513:21
9:43
#10945
Finish
26.22 mi13:53:593:26:427:538:50
8:40
#11198
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi9828177317739074(Top 34%)1480(Top 13%)1480(Top 79%)
10K6.21 mi3.10 mi10170-3421915-1421915-14210503(Top 39%)2060(Top 18%)2060(Top 110%)
15K9.32 mi3.11 mi9732+4381725+1901725+1909074(Top 34%)1480(Top 13%)1480(Top 79%)
20K12.43 mi3.11 mi9716+161712+131712+139782(Top 37%)1823(Top 16%)1823(Top 97%)
Half13.11 mi0.68 mi9776-601740-281740-2810696(Top 40%)2234(Top 20%)2234(Top 119%)
25K15.53 mi2.42 mi9763+131747-71747-79802(Top 37%)1921(Top 17%)1921(Top 102%)
30K18.64 mi3.11 mi10014-2511897-1501897-15011432(Top 43%)2864(Top 25%)2864(Top 153%)
20M20.00 mi1.36 mi10079-651964-671964-6711173(Top 42%)2814(Top 25%)2814(Top 150%)
21M21.00 mi1.00 mi10245-1662069-1052069-10513218(Top 50%)4053(Top 35%)4053(Top 216%)
35K21.75 mi0.75 mi10378-1332157-882157-8813903(Top 52%)4494(Top 39%)4494(Top 239%)
23M23.00 mi1.25 mi10553-1752280-1232280-12313584(Top 51%)4379(Top 38%)4379(Top 233%)
24M24.00 mi1.00 mi10698-1452377-972377-9713768(Top 52%)4526(Top 40%)4526(Top 241%)
40K24.85 mi0.85 mi10844-1462477-1002477-10014724(Top 55%)5137(Top 45%)5137(Top 274%)
25.2M25.20 mi0.35 mi10945-1012543-662543-6616173(Top 61%)5940(Top 52%)5940(Top 316%)
Finish26.22 mi1.02 mi11198-2532687-1442687-14416333(Top 61%)6002(Top 53%)6002(Top 320%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9074

Females

1480

F40-44

1480

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10503

Females

2060

F40-44

2060

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9074

Females

1480

F40-44

1480

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

9782

Females

1823

F40-44

1823

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10696

Females

2234

F40-44

2234

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9802

Females

1921

F40-44

1921

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11432

Females

2864

F40-44

2864

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11173

Females

2814

F40-44

2814

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13218

Females

4053

F40-44

4053

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13903

Females

4494

F40-44

4494

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13584

Females

4379

F40-44

4379

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13768

Females

4526

F40-44

4526

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14724

Females

5137

F40-44

5137

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16173

Females

5940

F40-44

5940

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16333

Females

6002

F40-44

6002

Passing Analysis

Category:
Athletes Passed
1314*
Passed By
2683
Net Change
-1370
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9828
5K → 10K180521-342#9828#10170
10K → 15K471*33+438#10170#9732
15K → 20K160*144+16#9732#9716
20K → Half1171-60#9716#9776
Half → 25K126113+13#9776#9763
25K → 30K86337-251#9763#10014
30K → 20M72137-65#10014#10079
20M → 21M43209-166#10079#10245
21M → 35K22155-133#10245#10378
35K → 23M41216-175#10378#10553
23M → 24M31176-145#10553#10698
24M → 40K38184-146#10698#10844
40K → 25.2M12113-101#10844#10945
25.2M → Finish21274-253#10945#11198
TOTALS1314*2683-1370

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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