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BOSTON MARATHON 2023

Jana Grindheim

Bib: 16787•F

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Division (F18-39)
#0 / 4884
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:01
Rank: #11731
Start → 5K
24:01 | 7:44/mi
10K· 6.21 mi
47:29
Rank: #11282 (+449)
5K → 10K
23:28 | 7:33/mi
15K· 9.32 mi
1:10:58
Rank: #11054 (+228)
10K → 15K
23:29 | 7:34/mi
20K· 12.43 mi
1:34:40
Rank: #10852 (+202)
15K → 20K
23:42 | 7:38/mi
Half· 13.11 mi
1:39:38
Rank: #10725 (+127)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:57:52
Rank: #10376 (+349)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:21:21
Rank: #9841 (+535)
25K → 30K
23:29 | 7:34/mi
20M
2:31:52
Rank: #9688 (+153)
30K → 20M
10:31 | 7:44/mi
21M
2:39:53
Rank: #9541 (+147)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:45:07
Rank: #9332 (+209)
21M → 35K
5:14 | 7:00/mi
23M
2:54:38
Rank: #9182 (+150)
35K → 23M
9:31 | 7:36/mi
24M
3:02:05
Rank: #9070 (+112)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:08:34
Rank: #8980 (+90)
24M → 40K
6:29 | 7:35/mi
25.2M
3:11:21
Rank: #8927 (+53)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:18:41
Rank: #8799 (+128)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:38
Pace7:36 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:03
Pace7:33 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3724:017:4424:01
7:44
-
10K
6.21 mi11:43:0547:297:3923:28
7:33
-0:11
15K
9.32 mi12:06:341:10:587:3723:29
7:34
+0:01
20K
12.43 mi12:30:161:34:407:3723:42
7:38
+0:04
Half
13.11 mi12:35:141:39:387:364:58
7:17
-0:21
25K
15.53 mi12:53:281:57:527:3518:14
7:31
+0:14
30K
18.64 mi13:16:572:21:217:3523:29
7:34
+0:03
20M
20.00 mi13:27:282:31:527:3610:31
7:44
+0:10
21M
21.00 mi13:35:292:39:537:378:01
8:01
+0:17
35K
21.75 mi13:40:432:45:077:365:14
7:00
-1:01
23M
23.00 mi13:50:142:54:387:369:31
7:36
+0:36
24M
24.00 mi13:57:413:02:057:357:27
7:27
-0:09
40K
24.85 mi14:04:103:08:347:356:29
7:35
+0:08
25.2M
25.20 mi14:06:573:11:217:362:47
8:04
+0:29
Finish
26.22 mi14:14:173:18:417:357:20
7:12
-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

7:00 /mi

Average Pace

7:35 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:21

77% of race

Time at Steady Pace

45:20

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi11:19:3724:017:4424:01
7:44
#11731
10K
6.21 mi11:43:0547:297:3923:28
7:33
#11282
15K
9.32 mi12:06:341:10:587:3723:29
7:34
#11054
20K
12.43 mi12:30:161:34:407:3723:42
7:38
#10852
Half
13.11 mi12:35:141:39:387:364:58
7:17
#10725
25K
15.53 mi12:53:281:57:527:3518:14
7:31
#10376
30K
18.64 mi13:16:572:21:217:3523:29
7:34
#9841
20M
20.00 mi13:27:282:31:527:3610:31
7:44
#9688
21M
21.00 mi13:35:292:39:537:378:01
8:01
#9541
35K
21.75 mi13:40:432:45:077:365:14
7:00
#9332
23M
23.00 mi13:50:142:54:387:369:31
7:36
#9182
24M
24.00 mi13:57:413:02:057:357:27
7:27
#9070
40K
24.85 mi14:04:103:08:347:356:29
7:35
#8980
25.2M
25.20 mi14:06:573:11:217:362:47
8:04
#8927
Finish
26.22 mi14:14:173:18:417:357:20
7:12
#8799
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi117312705270510657(Top 40%)2158(Top 19%)2158(Top 44%)
10K6.21 mi3.10 mi11282+4492481+2242481+22410908(Top 41%)2260(Top 20%)2260(Top 46%)
15K9.32 mi3.11 mi11054+2282358+1232358+12310657(Top 40%)2158(Top 19%)2158(Top 44%)
20K12.43 mi3.11 mi10852+2022266+922266+9210308(Top 39%)2050(Top 18%)2050(Top 42%)
Half13.11 mi0.68 mi10725+1272201+652201+658518(Top 32%)1297(Top 11%)1297(Top 27%)
25K15.53 mi2.42 mi10376+3492030+1712030+1718935(Top 34%)1535(Top 13%)1535(Top 31%)
30K18.64 mi3.11 mi9841+5351817+2131817+2137653(Top 29%)1169(Top 10%)1169(Top 24%)
20M20.00 mi1.36 mi9688+1531785+321785+328451(Top 32%)1575(Top 14%)1575(Top 32%)
21M21.00 mi1.00 mi9541+1471748+371748+377479(Top 28%)1310(Top 11%)1310(Top 27%)
35K21.75 mi0.75 mi9332+2091686+621686+625371(Top 20%)597(Top 5%)597(Top 12%)
23M23.00 mi1.25 mi9182+1501648+381648+387128(Top 27%)1225(Top 11%)1225(Top 25%)
24M24.00 mi1.00 mi9070+1121620+281620+287394(Top 28%)1441(Top 13%)1441(Top 30%)
40K24.85 mi0.85 mi8980+901604+161604+167247(Top 27%)1466(Top 13%)1466(Top 30%)
25.2M25.20 mi0.35 mi8927+531593+111593+116988(Top 26%)1411(Top 12%)1411(Top 29%)
Finish26.22 mi1.02 mi8799+1281562+311562+316437(Top 24%)1215(Top 11%)1215(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10657

Females

2158

F18-39

2158

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10908

Females

2260

F18-39

2260

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10657

Females

2158

F18-39

2158

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10308

Females

2050

F18-39

2050

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8518

Females

1297

F18-39

1297

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

8935

Females

1535

F18-39

1535

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7653

Females

1169

F18-39

1169

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8451

Females

1575

F18-39

1575

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7479

Females

1310

F18-39

1310

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5371

Females

597

F18-39

597

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7128

Females

1225

F18-39

1225

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7394

Females

1441

F18-39

1441

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7247

Females

1466

F18-39

1466

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6988

Females

1411

F18-39

1411

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6437

Females

1215

F18-39

1215

Passing Analysis

Category:
Athletes Passed
3317*
Passed By
385
Net Change
+2932
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11731
5K → 10K577128+449#11731#11282
10K → 15K31688+228#11282#11054
15K → 20K26462+202#11054#10852
20K → Half1281+127#10852#10725
Half → 25K35910+349#10725#10376
25K → 30K542*7+535#10376#9841
30K → 20M17118+153#9841#9688
20M → 21M15912+147#9688#9541
21M → 35K2101+209#9541#9332
35K → 23M16616+150#9332#9182
23M → 24M12412+112#9182#9070
24M → 40K10111+90#9070#8980
40K → 25.2M585+53#8980#8927
25.2M → Finish14214+128#8927#8799
TOTALS3317*385+2932

* 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