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BOSTON MARATHON 2023

Cindy Mercier

Bib: 18302•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 27%
Masters (Masters Women)
#0 / 6539
Top 13%
Division (F45-49)
#0 / 1817
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #13736
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
48:11
Rank: #12323 (+1413)
5K → 10K
23:27 | 7:33/mi
15K· 9.32 mi
1:11:43
Rank: #11740 (+583)
10K → 15K
23:32 | 7:34/mi
20K· 12.43 mi
1:35:34
Rank: #11447 (+293)
15K → 20K
23:51 | 7:41/mi
Half· 13.11 mi
1:40:48
Rank: #11450 (-3)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:59:35
Rank: #11286 (+164)
Half → 25K
18:47 | 7:45/mi
30K· 18.64 mi
2:24:04
Rank: #10992 (+294)
25K → 30K
24:29 | 7:53/mi
20M
2:35:19
Rank: #11067 (-75)
30K → 20M
11:15 | 8:17/mi
21M
2:44:29
Rank: #11265 (-198)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
2:50:48
Rank: #11430 (-165)
21M → 35K
6:19 | 8:27/mi
23M
3:01:52
Rank: #11707 (-277)
35K → 23M
11:04 | 8:50/mi
24M
3:10:19
Rank: #11832 (-125)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:17:29
Rank: #11845 (-13)
24M → 40K
7:10 | 8:23/mi
25.2M
3:20:43
Rank: #11899 (-54)
40K → 25.2M
3:14 | 9:23/mi
Finish· 26.22 mi
3:28:43
Rank: #11864 (+35)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:48
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:47:55
Pace8:14 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3924:447:5824:44
7:58
-
10K
6.21 mi11:45:0648:117:4523:27
7:33
-0:25
15K
9.32 mi12:08:381:11:437:4223:32
7:34
+0:01
20K
12.43 mi12:32:291:35:347:4123:51
7:41
+0:07
Half
13.11 mi12:37:431:40:487:415:14
7:40
-0:01
25K
15.53 mi12:56:301:59:357:4218:47
7:45
+0:05
30K
18.64 mi13:20:592:24:047:4424:29
7:53
+0:08
20M
20.00 mi13:32:142:35:197:4611:15
8:17
+0:24
21M
21.00 mi13:41:242:44:297:509:10
9:10
+0:53
35K
21.75 mi13:47:432:50:487:516:19
8:27
-0:43
23M
23.00 mi13:58:473:01:527:5411:04
8:50
+0:23
24M
24.00 mi14:07:143:10:197:568:27
8:27
-0:23
40K
24.85 mi14:14:243:17:297:577:10
8:23
-0:04
25.2M
25.20 mi14:17:383:20:437:583:14
9:23
+1:00
Finish
26.22 mi14:25:383:28:437:588:00
7:51
-1:32

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

7:33 /mi

Average Pace

7:58 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:04

36% of race

Time at Steady Pace

1:16:00

36% of race

Time at Slower Pace

56:39

27% of race

Average Pace: 7:58 /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 mi11:21:3924:447:5824:44
7:58
#13736
10K
6.21 mi11:45:0648:117:4523:27
7:33
#12323
15K
9.32 mi12:08:381:11:437:4223:32
7:34
#11740
20K
12.43 mi12:32:291:35:347:4123:51
7:41
#11447
Half
13.11 mi12:37:431:40:487:415:14
7:40
#11450
25K
15.53 mi12:56:301:59:357:4218:47
7:45
#11286
30K
18.64 mi13:20:592:24:047:4424:29
7:53
#10992
20M
20.00 mi13:32:142:35:197:4611:15
8:17
#11067
21M
21.00 mi13:41:242:44:297:509:10
9:10
#11265
35K
21.75 mi13:47:432:50:487:516:19
8:27
#11430
23M
23.00 mi13:58:473:01:527:5411:04
8:50
#11707
24M
24.00 mi14:07:143:10:197:568:27
8:27
#11832
40K
24.85 mi14:14:243:17:297:577:10
8:23
#11845
25.2M
25.20 mi14:17:383:20:437:583:14
9:23
#11899
Finish
26.22 mi14:25:383:28:437:588:00
7:51
#11864
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi137363863386310810(Top 41%)2240(Top 20%)2240(Top 123%)
10K6.21 mi3.10 mi12323+14133053+8103053+81010876(Top 41%)2250(Top 20%)2250(Top 124%)
15K9.32 mi3.11 mi11740+5832755+2982755+29810810(Top 41%)2240(Top 20%)2240(Top 123%)
20K12.43 mi3.11 mi11447+2932586+1692586+16910752(Top 40%)2289(Top 20%)2289(Top 126%)
Half13.11 mi0.68 mi11450-32593-72593-711710(Top 44%)2754(Top 24%)2754(Top 152%)
25K15.53 mi2.42 mi11286+1642525+682525+6810702(Top 40%)2344(Top 21%)2344(Top 129%)
30K18.64 mi3.11 mi10992+2942402+1232402+12310000(Top 38%)2167(Top 19%)2167(Top 119%)
20M20.00 mi1.36 mi11067-752473-712473-7112223(Top 46%)3405(Top 30%)3405(Top 187%)
21M21.00 mi1.00 mi11265-1982603-1302603-13014305(Top 54%)4653(Top 41%)4653(Top 256%)
35K21.75 mi0.75 mi11430-1652707-1042707-10414973(Top 56%)5078(Top 44%)5078(Top 279%)
23M23.00 mi1.25 mi11707-2772883-1762883-17615200(Top 57%)5281(Top 46%)5281(Top 291%)
24M24.00 mi1.00 mi11832-1252971-882971-8814187(Top 53%)4773(Top 42%)4773(Top 263%)
40K24.85 mi0.85 mi11845-133006-353006-3512594(Top 47%)3986(Top 35%)3986(Top 219%)
25.2M25.20 mi0.35 mi11899-543047-413047-4114576(Top 55%)5042(Top 44%)5042(Top 277%)
Finish26.22 mi1.02 mi11864+353046+13046+111065(Top 42%)3230(Top 28%)3230(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10810

Females

2240

F45-49

2240

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10876

Females

2250

F45-49

2250

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10810

Females

2240

F45-49

2240

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10752

Females

2289

F45-49

2289

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11710

Females

2754

F45-49

2754

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10702

Females

2344

F45-49

2344

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10000

Females

2167

F45-49

2167

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12223

Females

3405

F45-49

3405

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14305

Females

4653

F45-49

4653

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14973

Females

5078

F45-49

5078

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15200

Females

5281

F45-49

5281

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14187

Females

4773

F45-49

4773

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12594

Females

3986

F45-49

3986

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14576

Females

5042

F45-49

5042

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11065

Females

3230

F45-49

3230

Passing Analysis

Category:
Athletes Passed
3320*
Passed By
1448
Net Change
+1872
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13736
5K → 10K144330+1413#13736#12323
10K → 15K61128+583#12323#11740
15K → 20K33340+293#11740#11447
20K → Half2629-3#11447#11450
Half → 25K20844+164#11450#11286
25K → 30K33743+294#11286#10992
30K → 20M71*146-75#10992#11067
20M → 21M38236-198#11067#11265
21M → 35K18183-165#11265#11430
35K → 23M36313-277#11430#11707
23M → 24M36161-125#11707#11832
24M → 40K5972-13#11832#11845
40K → 25.2M1569-54#11845#11899
25.2M → Finish8954+35#11899#11864
TOTALS3320*1448+1872

* 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