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BOSTON MARATHON 2023

Iris Lenauer

Bib: 15123•F

ON

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Division (F18-39)
#0 / 4884
Top 30%
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
7:42/mi
23:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:37/mi
47:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:11:05
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:34:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:40:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
1:59:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:24:01
↑ 181↓ 1480.2%
20M
7:55/mi
2:34:46
↑ 64↓ 500.2%
21M
8:22/mi
2:43:08
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:48:46
↑ 17↓ 861.7%
23M
7:32/mi
2:58:12
↑ 23↓ 630.6%
24M
7:10/mi
3:05:22
↓ 821.3%
40K· 24.85 mi
7:20/mi
3:11:38
↓ 200.3%
25.2M
8:01/mi
3:14:24
↑ 13↓ 160.2%
Finish· 26.22 mi
7:11/mi
3:21:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:05
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2723:547:4223:54
7:42
-
10K
6.21 mi11:17:0847:357:3923:41
7:37
-0:05
15K
9.32 mi11:40:381:11:057:3823:30
7:34
-0:03
20K
12.43 mi12:04:281:34:557:3823:50
7:40
+0:06
Half
13.11 mi12:09:381:40:057:385:10
7:34
-0:06
25K
15.53 mi12:28:351:59:027:4018:57
7:49
+0:15
30K
18.64 mi12:53:342:24:017:4424:59
8:02
+0:13
20M
20.00 mi13:04:192:34:467:4410:45
7:55
-0:07
21M
21.00 mi13:12:412:43:087:468:22
8:22
+0:27
35K
21.75 mi13:18:192:48:467:465:38
7:32
-0:50
23M
23.00 mi13:27:452:58:127:459:26
7:32
0:00
24M
24.00 mi13:34:553:05:227:437:10
7:10
-0:22
40K
24.85 mi13:41:113:11:387:436:16
7:20
+0:10
25.2M
25.20 mi13:43:573:14:247:432:46
8:01
+0:41
Finish
26.22 mi13:51:163:21:437:427:19
7:11
-0:50

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

7:10 /mi

Average Pace

7:42 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:51

77% of race

Time at Steady Pace

46:52

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi10:53:2723:547:4223:54
7:42
#11385
10K
6.21 mi11:17:0847:357:3923:41
7:37
#11415
15K
9.32 mi11:40:381:11:057:3823:30
7:34
#11164
20K
12.43 mi12:04:281:34:557:3823:50
7:40
#11015
Half
13.11 mi12:09:381:40:057:385:10
7:34
#11004
25K
15.53 mi12:28:351:59:027:4018:57
7:49
#11006
30K
18.64 mi12:53:342:24:017:4424:59
8:02
#10967
20M
20.00 mi13:04:192:34:467:4410:45
7:55
#10825
21M
21.00 mi13:12:412:43:087:468:22
8:22
#10763
35K
21.75 mi13:18:192:48:467:465:38
7:32
#10652
23M
23.00 mi13:27:452:58:127:459:26
7:32
#10384
24M
24.00 mi13:34:553:05:227:437:10
7:10
#10134
40K
24.85 mi13:41:113:11:387:436:16
7:20
#9909
25.2M
25.20 mi13:43:573:14:247:432:46
8:01
#9839
Finish
26.22 mi13:51:163:21:437:427:19
7:11
#9651
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi113852528252810722(Top 40%)2191(Top 19%)2191(Top 45%)
10K6.21 mi3.10 mi11415-302555-272555-2711544(Top 43%)2620(Top 23%)2620(Top 54%)
15K9.32 mi3.11 mi11164+2512420+1352420+13510722(Top 40%)2191(Top 19%)2191(Top 45%)
20K12.43 mi3.11 mi11015+1492336+842336+8410689(Top 40%)2250(Top 20%)2250(Top 46%)
Half13.11 mi0.68 mi11004+112333+32333+310852(Top 41%)2281(Top 20%)2281(Top 47%)
25K15.53 mi2.42 mi11006-22359-262359-2611221(Top 42%)2597(Top 23%)2597(Top 53%)
30K18.64 mi3.11 mi10967+392386-272386-2711231(Top 42%)2749(Top 24%)2749(Top 56%)
20M20.00 mi1.36 mi10825+1422342+442342+449648(Top 36%)2083(Top 18%)2083(Top 43%)
21M21.00 mi1.00 mi10763+622334+82334+89660(Top 36%)2216(Top 19%)2216(Top 45%)
35K21.75 mi0.75 mi10652+1112301+332301+338784(Top 33%)1817(Top 16%)1817(Top 37%)
23M23.00 mi1.25 mi10384+2682188+1132188+1136665(Top 25%)1056(Top 9%)1056(Top 22%)
24M24.00 mi1.00 mi10134+2502093+952093+955604(Top 21%)763(Top 7%)763(Top 16%)
40K24.85 mi0.85 mi9909+2252017+762017+765688(Top 21%)878(Top 8%)878(Top 18%)
25.2M25.20 mi0.35 mi9839+701998+191998+196751(Top 25%)1337(Top 12%)1337(Top 27%)
Finish26.22 mi1.02 mi9651+1881939+591939+596322(Top 24%)1179(Top 10%)1179(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10722

Females

2191

F18-39

2191

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

11544

Females

2620

F18-39

2620

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10722

Females

2191

F18-39

2191

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10689

Females

2250

F18-39

2250

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10852

Females

2281

F18-39

2281

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11221

Females

2597

F18-39

2597

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11231

Females

2749

F18-39

2749

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9648

Females

2083

F18-39

2083

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9660

Females

2216

F18-39

2216

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8784

Females

1817

F18-39

1817

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6665

Females

1056

F18-39

1056

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5604

Females

763

F18-39

763

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5688

Females

878

F18-39

878

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6751

Females

1337

F18-39

1337

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6322

Females

1179

F18-39

1179

Passing Analysis

Category:
Athletes Passed
2605*
Passed By
871
Net Change
+1734
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11385
5K → 10K293323-30#11385#11415
10K → 15K33786+251#11415#11164
15K → 20K22980+149#11164#11015
20K → Half2615+11#11015#11004
Half → 25K121123-2#11004#11006
25K → 30K190151+39#11006#10967
30K → 20M168*26+142#10967#10825
20M → 21M10341+62#10825#10763
21M → 35K1187+111#10763#10652
35K → 23M2735+268#10652#10384
23M → 24M2511+250#10384#10134
24M → 40K227*2+225#10134#9909
40K → 25.2M722+70#9909#9839
25.2M → Finish197*9+188#9839#9651
TOTALS2605*871+1734

* 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