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BOSTON MARATHON 2023

Jennifer Lutz

Bib: 12751•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 13%
Gender (Female)
#0 / 11423
Top 2%
Masters (Masters Women)
#0 / 6539
Top 0.5%
Division (F40-44)
#0 / 1878
Top 1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
21:20
Rank: #5296
Start → 5K
21:20 | 6:52/mi
10K· 6.21 mi
42:24
Rank: #5166 (+130)
5K → 10K
21:04 | 6:47/mi
15K· 9.32 mi
1:03:25
Rank: #5038 (+128)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:24:29
Rank: #4832 (+206)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:29:05
Rank: #4826 (+6)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:32
Rank: #4639 (+187)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:06:41
Rank: #4284 (+355)
25K → 30K
21:09 | 6:48/mi
20M
2:15:59
Rank: #4152 (+132)
30K → 20M
9:18 | 6:51/mi
21M
2:23:04
Rank: #3986 (+166)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:28:04
Rank: #3946 (+40)
21M → 35K
5:00 | 6:41/mi
23M
2:36:38
Rank: #3843 (+103)
35K → 23M
8:34 | 6:51/mi
24M
2:43:18
Rank: #3765 (+78)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:49:10
Rank: #3711 (+54)
24M → 40K
5:52 | 6:52/mi
25.2M
2:51:38
Rank: #3666 (+45)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:58:02
Rank: #3506 (+160)
25.2M → Finish
6:24 | 6:17/mi

Course Map & Elevation

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:05
Pace6:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:57
Pace6:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1821:206:5221:20
6:52
-
10K
6.21 mi11:09:2242:246:4921:04
6:47
-0:05
15K
9.32 mi11:30:231:03:256:4821:01
6:46
-0:01
20K
12.43 mi11:51:271:24:296:4821:04
6:47
+0:01
Half
13.11 mi11:56:031:29:056:484:36
6:45
-0:02
25K
15.53 mi12:12:301:45:326:4816:27
6:47
+0:02
30K
18.64 mi12:33:392:06:416:4821:09
6:48
+0:01
20M
20.00 mi12:42:572:15:596:489:18
6:51
+0:03
21M
21.00 mi12:50:022:23:046:497:05
7:05
+0:14
35K
21.75 mi12:55:022:28:046:485:00
6:41
-0:24
23M
23.00 mi13:03:362:36:386:498:34
6:51
+0:10
24M
24.00 mi13:10:162:43:186:486:40
6:40
-0:11
40K
24.85 mi13:16:082:49:106:485:52
6:52
+0:12
25.2M
25.20 mi13:18:362:51:386:492:28
7:09
+0:17
Finish
26.22 mi13:25:002:58:026:486:24
6:17
-0:52

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

6:17 /mi

Average Pace

6:48 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:48:29

95% of race

Time at Steady Pace

9:33

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:48:1821:206:5221:20
6:52
#5296
10K
6.21 mi11:09:2242:246:4921:04
6:47
#5166
15K
9.32 mi11:30:231:03:256:4821:01
6:46
#5038
20K
12.43 mi11:51:271:24:296:4821:04
6:47
#4832
Half
13.11 mi11:56:031:29:056:484:36
6:45
#4826
25K
15.53 mi12:12:301:45:326:4816:27
6:47
#4639
30K
18.64 mi12:33:392:06:416:4821:09
6:48
#4284
20M
20.00 mi12:42:572:15:596:489:18
6:51
#4152
21M
21.00 mi12:50:022:23:046:497:05
7:05
#3986
35K
21.75 mi12:55:022:28:046:485:00
6:41
#3946
23M
23.00 mi13:03:362:36:386:498:34
6:51
#3843
24M
24.00 mi13:10:162:43:186:486:40
6:40
#3765
40K
24.85 mi13:16:082:49:106:485:52
6:52
#3711
25.2M
25.20 mi13:18:362:51:386:492:28
7:09
#3666
Finish
26.22 mi13:25:002:58:026:486:24
6:17
#3506
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi52963883884783(Top 18%)320(Top 3%)320(Top 17%)
10K6.21 mi3.10 mi5166+130374+14374+145117(Top 19%)377(Top 3%)377(Top 20%)
15K9.32 mi3.11 mi5038+128354+20354+204783(Top 18%)320(Top 3%)320(Top 17%)
20K12.43 mi3.11 mi4832+206327+27327+274275(Top 16%)270(Top 2%)270(Top 14%)
Half13.11 mi0.68 mi4826+6326+1326+14840(Top 18%)334(Top 3%)334(Top 18%)
25K15.53 mi2.42 mi4639+187309+17309+174039(Top 15%)249(Top 2%)249(Top 13%)
30K18.64 mi3.11 mi4284+355263+46263+463043(Top 11%)165(Top 1%)165(Top 9%)
20M20.00 mi1.36 mi4152+132252+11252+113115(Top 12%)190(Top 2%)190(Top 10%)
21M21.00 mi1.00 mi3986+166237+15237+152581(Top 10%)147(Top 1%)147(Top 8%)
35K21.75 mi0.75 mi3946+40232+5232+53518(Top 13%)250(Top 2%)250(Top 13%)
23M23.00 mi1.25 mi3843+103223+9223+92932(Top 11%)193(Top 2%)193(Top 10%)
24M24.00 mi1.00 mi3765+78221+2221+22967(Top 11%)210(Top 2%)210(Top 11%)
40K24.85 mi0.85 mi3711+54220+1220+13156(Top 12%)256(Top 2%)256(Top 14%)
25.2M25.20 mi0.35 mi3666+45215+5215+52407(Top 9%)177(Top 2%)177(Top 9%)
Finish26.22 mi1.02 mi3506+160202+13202+131579(Top 6%)91(Top 0.8%)91(Top 5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4783

Females

320

F40-44

320

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5117

Females

377

F40-44

377

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4783

Females

320

F40-44

320

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4275

Females

270

F40-44

270

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4840

Females

334

F40-44

334

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4039

Females

249

F40-44

249

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3043

Females

165

F40-44

165

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3115

Females

190

F40-44

190

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2581

Females

147

F40-44

147

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3518

Females

250

F40-44

250

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2932

Females

193

F40-44

193

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2967

Females

210

F40-44

210

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3156

Females

256

F40-44

256

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2407

Females

177

F40-44

177

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1579

Females

91

F40-44

91

Passing Analysis

Category:
Athletes Passed
2140
Passed By
350
Net Change
+1790
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5296
5K → 10K262132+130#5296#5166
10K → 15K19163+128#5166#5038
15K → 20K23125+206#5038#4832
20K → Half3125+6#4832#4826
Half → 25K20720+187#4826#4639
25K → 30K3561+355#4639#4284
30K → 20M14210+132#4284#4152
20M → 21M1737+166#4152#3986
21M → 35K5818+40#3986#3946
35K → 23M11310+103#3946#3843
23M → 24M9012+78#3843#3765
24M → 40K7319+54#3765#3711
40K → 25.2M494+45#3711#3666
25.2M → Finish1644+160#3666#3506
TOTALS2140350+1790
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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