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BOSTON MARATHON 2023

Marina Guzman Hentschel

Bib: 12339•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:37
Rank: #10555
Start → 5K
23:37 | 7:36/mi
10K· 6.21 mi
46:08
Rank: #9374 (+1181)
5K → 10K
22:31 | 7:15/mi
15K· 9.32 mi
1:08:10
Rank: #8556 (+818)
10K → 15K
22:02 | 7:06/mi
20K· 12.43 mi
1:30:18
Rank: #8011 (+545)
15K → 20K
22:08 | 7:07/mi
Half· 13.11 mi
1:35:09
Rank: #7966 (+45)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:52:23
Rank: #7616 (+350)
Half → 25K
17:14 | 7:06/mi
30K· 18.64 mi
2:14:55
Rank: #7220 (+396)
25K → 30K
22:32 | 7:15/mi
20M
2:24:36
Rank: #7001 (+219)
30K → 20M
9:41 | 7:08/mi
21M
2:32:07
Rank: #6842 (+159)
20M → 21M
7:31 | 7:31/mi
35K· 21.75 mi
2:37:17
Rank: #6737 (+105)
21M → 35K
5:10 | 6:54/mi
23M
2:46:13
Rank: #6564 (+173)
35K → 23M
8:56 | 7:08/mi
24M
2:53:19
Rank: #6473 (+91)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:59:28
Rank: #6369 (+104)
24M → 40K
6:09 | 7:12/mi
25.2M
3:02:07
Rank: #6322 (+47)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:09:17
Rank: #6253 (+69)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:35:09
Pace7:15 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:08
Pace7:11 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0723:377:3623:37
7:36
-
10K
6.21 mi11:13:3846:087:2522:31
7:15
-0:21
15K
9.32 mi11:35:401:08:107:1922:02
7:06
-0:09
20K
12.43 mi11:57:481:30:187:1622:08
7:07
+0:01
Half
13.11 mi12:02:391:35:097:154:51
7:07
0:00
25K
15.53 mi12:19:531:52:237:1417:14
7:06
-0:01
30K
18.64 mi12:42:252:14:557:1422:32
7:15
+0:09
20M
20.00 mi12:52:062:24:367:149:41
7:08
-0:07
21M
21.00 mi12:59:372:32:077:157:31
7:31
+0:23
35K
21.75 mi13:04:472:37:177:145:10
6:54
-0:37
23M
23.00 mi13:13:432:46:137:148:56
7:08
+0:14
24M
24.00 mi13:20:492:53:197:137:06
7:06
-0:02
40K
24.85 mi13:26:582:59:287:136:09
7:12
+0:06
25.2M
25.20 mi13:29:373:02:077:142:39
7:41
+0:29
Finish
26.22 mi13:36:473:09:177:137:10
7:02
-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

6:54 /mi

Average Pace

7:13 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:01

86% of race

Time at Steady Pace

26:16

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi10:51:0723:377:3623:37
7:36
#10555
10K
6.21 mi11:13:3846:087:2522:31
7:15
#9374
15K
9.32 mi11:35:401:08:107:1922:02
7:06
#8556
20K
12.43 mi11:57:481:30:187:1622:08
7:07
#8011
Half
13.11 mi12:02:391:35:097:154:51
7:07
#7966
25K
15.53 mi12:19:531:52:237:1417:14
7:06
#7616
30K
18.64 mi12:42:252:14:557:1422:32
7:15
#7220
20M
20.00 mi12:52:062:24:367:149:41
7:08
#7001
21M
21.00 mi12:59:372:32:077:157:31
7:31
#6842
35K
21.75 mi13:04:472:37:177:145:10
6:54
#6737
23M
23.00 mi13:13:432:46:137:148:56
7:08
#6564
24M
24.00 mi13:20:492:53:197:137:06
7:06
#6473
40K
24.85 mi13:26:582:59:287:136:09
7:12
#6369
25.2M
25.20 mi13:29:373:02:077:142:39
7:41
#6322
Finish
26.22 mi13:36:473:09:177:137:10
7:02
#6253
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10555210721077125(Top 27%)780(Top 7%)780(Top 16%)
10K6.21 mi3.10 mi9374+11811557+5501557+5508475(Top 32%)1215(Top 11%)1215(Top 25%)
15K9.32 mi3.11 mi8556+8181243+3141243+3147125(Top 27%)780(Top 7%)780(Top 16%)
20K12.43 mi3.11 mi8011+5451059+1841059+1846688(Top 25%)704(Top 6%)704(Top 14%)
Half13.11 mi0.68 mi7966+451046+131046+137267(Top 27%)833(Top 7%)833(Top 17%)
25K15.53 mi2.42 mi7616+350938+108938+1086173(Top 23%)599(Top 5%)599(Top 12%)
30K18.64 mi3.11 mi7220+396831+107831+1075794(Top 22%)572(Top 5%)572(Top 12%)
20M20.00 mi1.36 mi7001+219784+47784+474766(Top 18%)415(Top 4%)415(Top 8%)
21M21.00 mi1.00 mi6842+159756+28756+284696(Top 18%)447(Top 4%)447(Top 9%)
35K21.75 mi0.75 mi6737+105742+14742+144865(Top 18%)481(Top 4%)481(Top 10%)
23M23.00 mi1.25 mi6564+173715+27715+274510(Top 17%)421(Top 4%)421(Top 9%)
24M24.00 mi1.00 mi6473+91705+10705+105224(Top 20%)633(Top 6%)633(Top 13%)
40K24.85 mi0.85 mi6369+104688+17688+174880(Top 18%)610(Top 5%)610(Top 12%)
25.2M25.20 mi0.35 mi6322+47676+12676+124865(Top 18%)672(Top 6%)672(Top 14%)
Finish26.22 mi1.02 mi6253+69674+2674+25422(Top 20%)869(Top 8%)869(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7125

Females

780

F18-39

780

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8475

Females

1215

F18-39

1215

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7125

Females

780

F18-39

780

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6688

Females

704

F18-39

704

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7267

Females

833

F18-39

833

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6173

Females

599

F18-39

599

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5794

Females

572

F18-39

572

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4766

Females

415

F18-39

415

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4696

Females

447

F18-39

447

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4865

Females

481

F18-39

481

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4510

Females

421

F18-39

421

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5224

Females

633

F18-39

633

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4880

Females

610

F18-39

610

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4865

Females

672

F18-39

672

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5422

Females

869

F18-39

869

Passing Analysis

Category:
Athletes Passed
4401*
Passed By
99
Net Change
+4302
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10555
5K → 10K1211*30+1181#10555#9374
10K → 15K8224+818#9374#8556
15K → 20K5483+545#8556#8011
20K → Half472+45#8011#7966
Half → 25K3500+350#7966#7616
25K → 30K4059+396#7616#7220
30K → 20M2201+219#7220#7001
20M → 21M1601+159#7001#6842
21M → 35K1083+105#6842#6737
35K → 23M1774+173#6737#6564
23M → 24M10615+91#6564#6473
24M → 40K1139+104#6473#6369
40K → 25.2M503+47#6369#6322
25.2M → Finish8415+69#6322#6253
TOTALS4401*99+4302

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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