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BOSTON MARATHON 2023

Alice Najimy

Bib: 15151•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:18
Rank: #9648
Start → 5K
23:18 | 7:30/mi
10K· 6.21 mi
46:41
Rank: #10167 (-519)
5K → 10K
23:23 | 7:32/mi
15K· 9.32 mi
1:09:32
Rank: #9692 (+475)
10K → 15K
22:51 | 7:21/mi
20K· 12.43 mi
1:32:52
Rank: #9599 (+93)
15K → 20K
23:20 | 7:31/mi
Half· 13.11 mi
1:37:57
Rank: #9605 (-6)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:56:22
Rank: #9571 (+34)
Half → 25K
18:25 | 7:36/mi
30K· 18.64 mi
2:20:25
Rank: #9428 (+143)
25K → 30K
24:03 | 7:44/mi
20M
2:31:09
Rank: #9425 (+3)
30K → 20M
10:44 | 7:54/mi
21M
2:39:28
Rank: #9376 (+49)
20M → 21M
8:19 | 8:19/mi
35K· 21.75 mi
2:45:14
Rank: #9380 (-4)
21M → 35K
5:46 | 7:42/mi
23M
2:55:42
Rank: #9528 (-148)
35K → 23M
10:28 | 8:22/mi
24M
3:04:24
Rank: #9805 (-277)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
3:12:05
Rank: #10062 (-257)
24M → 40K
7:41 | 8:59/mi
25.2M
3:15:29
Rank: #10183 (-121)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:24:10
Rank: #10405 (-222)
25.2M → Finish
8:41 | 8:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:57
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:46:13
Pace8:06 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4423:187:3023:18
7:30
-
10K
6.21 mi11:16:0746:417:3123:23
7:32
+0:02
15K
9.32 mi11:38:581:09:327:2822:51
7:21
-0:11
20K
12.43 mi12:02:181:32:527:2823:20
7:31
+0:10
Half
13.11 mi12:07:231:37:577:285:05
7:27
-0:04
25K
15.53 mi12:25:481:56:227:2918:25
7:36
+0:09
30K
18.64 mi12:49:512:20:257:3224:03
7:44
+0:08
20M
20.00 mi13:00:352:31:097:3310:44
7:54
+0:10
21M
21.00 mi13:08:542:39:287:368:19
8:19
+0:25
35K
21.75 mi13:14:402:45:147:365:46
7:42
-0:37
23M
23.00 mi13:25:082:55:427:3810:28
8:22
+0:40
24M
24.00 mi13:33:503:04:247:418:42
8:42
+0:20
40K
24.85 mi13:41:313:12:057:447:41
8:59
+0:17
25.2M
25.20 mi13:44:553:15:297:453:24
9:52
+0:53
Finish
26.22 mi13:53:363:24:107:488:41
8:31
-1:21

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

7:21 /mi

Average Pace

7:48 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:51

11% of race

Time at Steady Pace

2:14:04

66% of race

Time at Slower Pace

47:15

23% of race

Average Pace: 7:47 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:52:4423:187:3023:18
7:30
#9648
10K
6.21 mi11:16:0746:417:3123:23
7:32
#10167
15K
9.32 mi11:38:581:09:327:2822:51
7:21
#9692
20K
12.43 mi12:02:181:32:527:2823:20
7:31
#9599
Half
13.11 mi12:07:231:37:577:285:05
7:27
#9605
25K
15.53 mi12:25:481:56:227:2918:25
7:36
#9571
30K
18.64 mi12:49:512:20:257:3224:03
7:44
#9428
20M
20.00 mi13:00:352:31:097:3310:44
7:54
#9425
21M
21.00 mi13:08:542:39:287:368:19
8:19
#9376
35K
21.75 mi13:14:402:45:147:365:46
7:42
#9380
23M
23.00 mi13:25:082:55:427:3810:28
8:22
#9528
24M
24.00 mi13:33:503:04:247:418:42
8:42
#9805
40K
24.85 mi13:41:313:12:057:447:41
8:59
#10062
25.2M
25.20 mi13:44:553:15:297:453:24
9:52
#10183
Finish
26.22 mi13:53:363:24:107:488:41
8:31
#10405
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9648168216828997(Top 34%)1452(Top 13%)1452(Top 30%)
10K6.21 mi3.10 mi10167-5191912-2301912-23010681(Top 40%)2145(Top 19%)2145(Top 44%)
15K9.32 mi3.11 mi9692+4751709+2031709+2038997(Top 34%)1452(Top 13%)1452(Top 30%)
20K12.43 mi3.11 mi9599+931669+401669+409409(Top 35%)1656(Top 14%)1656(Top 34%)
Half13.11 mi0.68 mi9605-61667+21667+29905(Top 37%)1860(Top 16%)1860(Top 38%)
25K15.53 mi2.42 mi9571+341678-111678-119533(Top 36%)1800(Top 16%)1800(Top 37%)
30K18.64 mi3.11 mi9428+1431661+171661+178956(Top 34%)1694(Top 15%)1694(Top 35%)
20M20.00 mi1.36 mi9425+31680-191680-199579(Top 36%)2055(Top 18%)2055(Top 42%)
21M21.00 mi1.00 mi9376+491684-41684-49356(Top 35%)2081(Top 18%)2081(Top 43%)
35K21.75 mi0.75 mi9380-41704-201704-2010034(Top 38%)2372(Top 21%)2372(Top 49%)
23M23.00 mi1.25 mi9528-1481777-731777-7312305(Top 46%)3683(Top 32%)3683(Top 75%)
24M24.00 mi1.00 mi9805-2771939-1621939-16215662(Top 59%)5611(Top 49%)5611(Top 115%)
40K24.85 mi0.85 mi10062-2572089-1502089-15016066(Top 60%)5886(Top 52%)5886(Top 121%)
25.2M25.20 mi0.35 mi10183-1212149-602149-6016806(Top 63%)6297(Top 55%)6297(Top 129%)
Finish26.22 mi1.02 mi10405-2222296-1472296-14715551(Top 58%)5556(Top 49%)5556(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

8997

Females

1452

F18-39

1452

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10681

Females

2145

F18-39

2145

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

8997

Females

1452

F18-39

1452

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9409

Females

1656

F18-39

1656

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9905

Females

1860

F18-39

1860

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9533

Females

1800

F18-39

1800

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

8956

Females

1694

F18-39

1694

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9579

Females

2055

F18-39

2055

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9356

Females

2081

F18-39

2081

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10034

Females

2372

F18-39

2372

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12305

Females

3683

F18-39

3683

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15662

Females

5611

F18-39

5611

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16066

Females

5886

F18-39

5886

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16806

Females

6297

F18-39

6297

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15551

Females

5556

F18-39

5556

Passing Analysis

Category:
Athletes Passed
1592*
Passed By
2347
Net Change
-757
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9648
5K → 10K134652-519#9648#10167
10K → 15K506*31+475#10167#9692
15K → 20K193100+93#9692#9599
20K → Half2329-6#9599#9605
Half → 25K139105+34#9605#9571
25K → 30K239*96+143#9571#9428
30K → 20M8784+3#9428#9425
20M → 21M10758+49#9425#9376
21M → 35K4650-4#9376#9380
35K → 23M51199-148#9380#9528
23M → 24M14291-277#9528#9805
24M → 40K17273-257#9805#10062
40K → 25.2M12*133-121#10062#10183
25.2M → Finish24246-222#10183#10405
TOTALS1592*2347-757

* 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