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BOSTON MARATHON 2023

Lena Reese

Bib: 15446•F

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0:00
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
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
7:37/mi
23:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
47:02
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:10:38
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:34:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:39:25
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:58:06
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:22:34
↑ 181↓ 1480.2%
20M
7:58/mi
2:33:23
↑ 64↓ 500.2%
21M
8:32/mi
2:41:55
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:47:53
↑ 17↓ 861.7%
23M
7:53/mi
2:57:45
↑ 23↓ 630.6%
24M
7:48/mi
3:05:33
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:12:14
↓ 200.3%
25.2M
8:19/mi
3:15:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:22:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:25
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:43:16
Pace7:53 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0623:407:3723:40
7:37
-
10K
6.21 mi11:15:2847:027:3423:22
7:31
-0:06
15K
9.32 mi11:39:041:10:387:3523:36
7:36
+0:05
20K
12.43 mi12:02:391:34:137:3523:35
7:35
-0:01
Half
13.11 mi12:07:511:39:257:355:12
7:37
+0:02
25K
15.53 mi12:26:321:58:067:3618:41
7:42
+0:05
30K
18.64 mi12:51:002:22:347:3924:28
7:53
+0:11
20M
20.00 mi13:01:492:33:237:4010:49
7:58
+0:05
21M
21.00 mi13:10:212:41:557:438:32
8:32
+0:34
35K
21.75 mi13:16:192:47:537:435:58
7:59
-0:33
23M
23.00 mi13:26:112:57:457:449:52
7:53
-0:06
24M
24.00 mi13:33:593:05:337:447:48
7:48
-0:05
40K
24.85 mi13:40:403:12:147:446:41
7:49
+0:01
25.2M
25.20 mi13:43:323:15:067:452:52
8:19
+0:30
Finish
26.22 mi13:51:073:22:417:447:35
7:26
-0:53

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

7:26 /mi

Average Pace

7:44 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:17

94% of race

Time at Steady Pace

11:24

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:52:0623:407:3723:40
7:37
#10704
10K
6.21 mi11:15:2847:027:3423:22
7:31
#10643
15K
9.32 mi11:39:041:10:387:3523:36
7:36
#10749
20K
12.43 mi12:02:391:34:137:3523:35
7:35
#10537
Half
13.11 mi12:07:511:39:257:355:12
7:37
#10580
25K
15.53 mi12:26:321:58:067:3618:41
7:42
#10499
30K
18.64 mi12:51:002:22:347:3924:28
7:53
#10348
20M
20.00 mi13:01:492:33:237:4010:49
7:58
#10314
21M
21.00 mi13:10:212:41:557:438:32
8:32
#10312
35K
21.75 mi13:16:192:47:537:435:58
7:59
#10353
23M
23.00 mi13:26:112:57:457:449:52
7:53
#10242
24M
24.00 mi13:33:593:05:337:447:48
7:48
#10182
40K
24.85 mi13:40:403:12:147:446:41
7:49
#10114
25.2M
25.20 mi13:43:323:15:067:452:52
8:19
#10062
Finish
26.22 mi13:51:073:22:417:447:35
7:26
#9953
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107042183218310993(Top 41%)2337(Top 20%)2337(Top 48%)
10K6.21 mi3.10 mi10643+612141+422141+4210634(Top 40%)2119(Top 19%)2119(Top 43%)
15K9.32 mi3.11 mi10749-1062205-642205-6410993(Top 41%)2337(Top 20%)2337(Top 48%)
20K12.43 mi3.11 mi10537+2122090+1152090+11510033(Top 38%)1930(Top 17%)1930(Top 40%)
Half13.11 mi0.68 mi10580-432109-192109-1911245(Top 42%)2476(Top 22%)2476(Top 51%)
25K15.53 mi2.42 mi10499+812093+162093+1610343(Top 39%)2150(Top 19%)2150(Top 44%)
30K18.64 mi3.11 mi10348+1512075+182075+189945(Top 37%)2135(Top 19%)2135(Top 44%)
20M20.00 mi1.36 mi10314+342076-12076-19982(Top 37%)2213(Top 19%)2213(Top 45%)
21M21.00 mi1.00 mi10312+22104-282104-2810684(Top 40%)2710(Top 24%)2710(Top 55%)
35K21.75 mi0.75 mi10353-412141-372141-3711940(Top 45%)3376(Top 30%)3376(Top 69%)
23M23.00 mi1.25 mi10242+1112118+232118+238964(Top 34%)2008(Top 18%)2008(Top 41%)
24M24.00 mi1.00 mi10182+602113+52113+59816(Top 37%)2501(Top 22%)2501(Top 51%)
40K24.85 mi0.85 mi10114+682111+22111+28815(Top 33%)2092(Top 18%)2092(Top 43%)
25.2M25.20 mi0.35 mi10062+522103+82103+88458(Top 32%)2009(Top 18%)2009(Top 41%)
Finish26.22 mi1.02 mi9953+1092074+292074+298127(Top 31%)1891(Top 17%)1891(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10993

Females

2337

F18-39

2337

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10634

Females

2119

F18-39

2119

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10993

Females

2337

F18-39

2337

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10033

Females

1930

F18-39

1930

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11245

Females

2476

F18-39

2476

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10343

Females

2150

F18-39

2150

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9945

Females

2135

F18-39

2135

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9982

Females

2213

F18-39

2213

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10684

Females

2710

F18-39

2710

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11940

Females

3376

F18-39

3376

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

8964

Females

2008

F18-39

2008

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9816

Females

2501

F18-39

2501

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8815

Females

2092

F18-39

2092

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8458

Females

2009

F18-39

2009

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8127

Females

1891

F18-39

1891

Passing Analysis

Category:
Athletes Passed
1918*
Passed By
1167
Net Change
+751
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10704
5K → 10K323262+61#10704#10643
10K → 15K144250-106#10643#10749
15K → 20K28472+212#10749#10537
20K → Half2366-43#10537#10580
Half → 25K15675+81#10580#10499
25K → 30K23584+151#10499#10348
30K → 20M90*56+34#10348#10314
20M → 21M9189+2#10314#10312
21M → 35K3576-41#10312#10353
35K → 23M14231+111#10353#10242
23M → 24M10040+60#10242#10182
24M → 40K9527+68#10182#10114
40K → 25.2M60*8+52#10114#10062
25.2M → Finish140*31+109#10062#9953
TOTALS1918*1167+751

* 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