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BOSTON MARATHON 2023

Alyson Rembowicz

Bib: 18201•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 26%
Division (F18-39)
#0 / 4884
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:06
Rank: #11991
Start → 5K
24:06 | 7:45/mi
10K· 6.21 mi
48:05
Rank: #12175 (-184)
5K → 10K
23:59 | 7:43/mi
15K· 9.32 mi
1:12:24
Rank: #12382 (-207)
10K → 15K
24:19 | 7:50/mi
20K· 12.43 mi
1:36:53
Rank: #12370 (+12)
15K → 20K
24:29 | 7:53/mi
Half· 13.11 mi
1:42:10
Rank: #12351 (+19)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:01:13
Rank: #12203 (+148)
Half → 25K
19:03 | 7:51/mi
30K· 18.64 mi
2:26:03
Rank: #11894 (+309)
25K → 30K
24:50 | 8:00/mi
20M
2:37:10
Rank: #11846 (+48)
30K → 20M
11:07 | 8:11/mi
21M
2:45:40
Rank: #11768 (+78)
20M → 21M
8:30 | 8:30/mi
35K· 21.75 mi
2:51:33
Rank: #11753 (+15)
21M → 35K
5:53 | 7:52/mi
23M
3:02:00
Rank: #11758 (-5)
35K → 23M
10:27 | 8:21/mi
24M
3:10:08
Rank: #11764 (-6)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:17:15
Rank: #11774 (-10)
24M → 40K
7:07 | 8:19/mi
25.2M
3:20:15
Rank: #11750 (+24)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:28:18
Rank: #11715 (+35)
25.2M → Finish
8:03 | 7:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:10
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:46:08
Pace8:06 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1024:067:4524:06
7:45
-
10K
6.21 mi11:39:0948:057:4423:59
7:43
-0:02
15K
9.32 mi12:03:281:12:247:4624:19
7:50
+0:07
20K
12.43 mi12:27:571:36:537:4824:29
7:53
+0:03
Half
13.11 mi12:33:141:42:107:485:17
7:45
-0:08
25K
15.53 mi12:52:172:01:137:4819:03
7:51
+0:06
30K
18.64 mi13:17:072:26:037:5024:50
8:00
+0:09
20M
20.00 mi13:28:142:37:107:5111:07
8:11
+0:11
21M
21.00 mi13:36:442:45:407:538:30
8:30
+0:19
35K
21.75 mi13:42:372:51:337:535:53
7:52
-0:38
23M
23.00 mi13:53:043:02:007:5510:27
8:21
+0:29
24M
24.00 mi14:01:123:10:087:558:08
8:08
-0:13
40K
24.85 mi14:08:193:17:157:567:07
8:19
+0:11
25.2M
25.20 mi14:11:193:20:157:573:00
8:42
+0:23
Finish
26.22 mi14:19:223:28:187:578:03
7:54
-0:48

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

7:43 /mi

Average Pace

7:57 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:48

94% of race

Time at Steady Pace

11:30

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /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 mi11:15:1024:067:4524:06
7:45
#11991
10K
6.21 mi11:39:0948:057:4423:59
7:43
#12175
15K
9.32 mi12:03:281:12:247:4624:19
7:50
#12382
20K
12.43 mi12:27:571:36:537:4824:29
7:53
#12370
Half
13.11 mi12:33:141:42:107:485:17
7:45
#12351
25K
15.53 mi12:52:172:01:137:4819:03
7:51
#12203
30K
18.64 mi13:17:072:26:037:5024:50
8:00
#11894
20M
20.00 mi13:28:142:37:107:5111:07
8:11
#11846
21M
21.00 mi13:36:442:45:407:538:30
8:30
#11768
35K
21.75 mi13:42:372:51:337:535:53
7:52
#11753
23M
23.00 mi13:53:043:02:007:5510:27
8:21
#11758
24M
24.00 mi14:01:123:10:087:558:08
8:08
#11764
40K
24.85 mi14:08:193:17:157:567:07
8:19
#11774
25.2M
25.20 mi14:11:193:20:157:573:00
8:42
#11750
Finish
26.22 mi14:19:223:28:187:578:03
7:54
#11715
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119912863286312948(Top 49%)3442(Top 30%)3442(Top 70%)
10K6.21 mi3.10 mi12175-1842961-982961-9812442(Top 47%)3113(Top 27%)3113(Top 64%)
15K9.32 mi3.11 mi12382-2073111-1503111-15012948(Top 49%)3442(Top 30%)3442(Top 70%)
20K12.43 mi3.11 mi12370+123132-213132-2112453(Top 47%)3227(Top 28%)3227(Top 66%)
Half13.11 mi0.68 mi12351+193120+123120+1212282(Top 46%)3074(Top 27%)3074(Top 63%)
25K15.53 mi2.42 mi12203+1483055+653055+6511595(Top 44%)2828(Top 25%)2828(Top 58%)
30K18.64 mi3.11 mi11894+3092919+1362919+13610867(Top 41%)2578(Top 23%)2578(Top 53%)
20M20.00 mi1.36 mi11846+482908+112908+1111583(Top 44%)3045(Top 27%)3045(Top 62%)
21M21.00 mi1.00 mi11768+782883+252883+2510514(Top 39%)2635(Top 23%)2635(Top 54%)
35K21.75 mi0.75 mi11753+152885-22885-211172(Top 42%)2959(Top 26%)2959(Top 61%)
23M23.00 mi1.25 mi11758-52911-262911-2612227(Top 46%)3638(Top 32%)3638(Top 74%)
24M24.00 mi1.00 mi11764-62932-212932-2112157(Top 46%)3668(Top 32%)3668(Top 75%)
40K24.85 mi0.85 mi11774-102962-302962-3012228(Top 46%)3785(Top 33%)3785(Top 77%)
25.2M25.20 mi0.35 mi11750+242961+12961+110812(Top 41%)3086(Top 27%)3086(Top 63%)
Finish26.22 mi1.02 mi11715+352964-32964-311411(Top 43%)3399(Top 30%)3399(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

12948

Females

3442

F18-39

3442

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12442

Females

3113

F18-39

3113

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

12948

Females

3442

F18-39

3442

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12453

Females

3227

F18-39

3227

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

12282

Females

3074

F18-39

3074

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11595

Females

2828

F18-39

2828

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10867

Females

2578

F18-39

2578

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11583

Females

3045

F18-39

3045

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10514

Females

2635

F18-39

2635

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11172

Females

2959

F18-39

2959

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12227

Females

3638

F18-39

3638

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12157

Females

3668

F18-39

3668

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12228

Females

3785

F18-39

3785

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10812

Females

3086

F18-39

3086

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11411

Females

3399

F18-39

3399

Passing Analysis

Category:
Athletes Passed
1785
Passed By
1509
Net Change
+276
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11991
5K → 10K216400-184#11991#12175
10K → 15K122329-207#12175#12382
15K → 20K181169+12#12382#12370
20K → Half3819+19#12370#12351
Half → 25K20052+148#12351#12203
25K → 30K37364+309#12203#11894
30K → 20M11567+48#11894#11846
20M → 21M12850+78#11846#11768
21M → 35K5641+15#11768#11753
35K → 23M9499-5#11753#11758
23M → 24M6874-6#11758#11764
24M → 40K5868-10#11764#11774
40K → 25.2M4218+24#11774#11750
25.2M → Finish9459+35#11750#11715
TOTALS17851509+276
📊

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