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BOSTON MARATHON 2023

Jennifer Mercier

Bib: 20619•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 28%
Division (F40-44)
#0 / 1878
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:16/mi
25:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:11/mi
51:05
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:16:08
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:41:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:47:30
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
2:07:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:32/mi
2:34:12
↑ 181↓ 1480.2%
20M
8:37/mi
2:45:55
↑ 64↓ 500.2%
21M
9:00/mi
2:54:55
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:01:20
↑ 17↓ 861.7%
23M
8:40/mi
3:12:11
↑ 23↓ 630.6%
24M
8:25/mi
3:20:36
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:27:53
↓ 200.3%
25.2M
8:56/mi
3:30:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:38:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:30
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:51:02
Pace8:28 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4425:418:1625:41
8:16
-
10K
6.21 mi11:44:0851:058:1325:24
8:11
-0:05
15K
9.32 mi12:09:111:16:088:1025:03
8:04
-0:07
20K
12.43 mi12:35:011:41:588:1225:50
8:19
+0:15
Half
13.11 mi12:40:331:47:308:125:32
8:07
-0:12
25K
15.53 mi13:00:452:07:428:1320:12
8:20
+0:13
30K
18.64 mi13:27:152:34:128:1626:30
8:32
+0:12
20M
20.00 mi13:38:582:45:558:1811:43
8:37
+0:05
21M
21.00 mi13:47:582:54:558:209:00
9:00
+0:23
35K
21.75 mi13:54:233:01:208:206:25
8:35
-0:25
23M
23.00 mi14:05:143:12:118:2110:51
8:40
+0:05
24M
24.00 mi14:13:393:20:368:228:25
8:25
-0:15
40K
24.85 mi14:20:563:27:538:227:17
8:31
+0:06
25.2M
25.20 mi14:24:013:30:588:223:05
8:56
+0:25
Finish
26.22 mi14:31:353:38:328:207:34
7:26
-1:30

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

7:26 /mi

Average Pace

8:20 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:33

29% of race

Time at Steady Pace

2:00:20

55% of race

Time at Slower Pace

34:39

16% of race

Average Pace: 8:20 /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 mi11:18:4425:418:1625:41
8:16
#15937
10K
6.21 mi11:44:0851:058:1325:24
8:11
#15973
15K
9.32 mi12:09:111:16:088:1025:03
8:04
#15605
20K
12.43 mi12:35:011:41:588:1225:50
8:19
#15613
Half
13.11 mi12:40:331:47:308:125:32
8:07
#15592
25K
15.53 mi13:00:452:07:428:1320:12
8:20
#15495
30K
18.64 mi13:27:152:34:128:1626:30
8:32
#15276
20M
20.00 mi13:38:582:45:558:1811:43
8:37
#15206
21M
21.00 mi13:47:582:54:558:209:00
9:00
#15079
35K
21.75 mi13:54:233:01:208:206:25
8:35
#15097
23M
23.00 mi14:05:143:12:118:2110:51
8:40
#15024
24M
24.00 mi14:13:393:20:368:228:25
8:25
#14957
40K
24.85 mi14:20:563:27:538:227:17
8:31
#14875
25.2M
25.20 mi14:24:013:30:588:223:05
8:56
#14814
Finish
26.22 mi14:31:353:38:328:207:34
7:26
#14568
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi159375233523314920(Top 56%)4633(Top 41%)4633(Top 247%)
10K6.21 mi3.10 mi15973-365266-335266-3316082(Top 60%)5324(Top 47%)5324(Top 283%)
15K9.32 mi3.11 mi15605+3685040+2265040+22614920(Top 56%)4633(Top 41%)4633(Top 247%)
20K12.43 mi3.11 mi15613-85066-265066-2615694(Top 59%)5156(Top 45%)5156(Top 275%)
Half13.11 mi0.68 mi15592+215057+95057+915242(Top 57%)4827(Top 42%)4827(Top 257%)
25K15.53 mi2.42 mi15495+975025+325025+3215148(Top 57%)4935(Top 43%)4935(Top 263%)
30K18.64 mi3.11 mi15276+2194927+984927+9814508(Top 54%)4630(Top 41%)4630(Top 247%)
20M20.00 mi1.36 mi15206+704912+154912+1514428(Top 54%)4662(Top 41%)4662(Top 248%)
21M21.00 mi1.00 mi15079+1274848+644848+6413440(Top 50%)4185(Top 37%)4185(Top 223%)
35K21.75 mi0.75 mi15097-184876-284876-2815743(Top 59%)5538(Top 48%)5538(Top 295%)
23M23.00 mi1.25 mi15024+734854+224854+2214189(Top 53%)4719(Top 41%)4719(Top 251%)
24M24.00 mi1.00 mi14957+674830+244830+2414000(Top 53%)4674(Top 41%)4674(Top 249%)
40K24.85 mi0.85 mi14875+824806+244806+2413497(Top 51%)4474(Top 39%)4474(Top 238%)
25.2M25.20 mi0.35 mi14814+614784+224784+2212261(Top 46%)3874(Top 34%)3874(Top 206%)
Finish26.22 mi1.02 mi14568+2464640+1444640+1448024(Top 30%)1854(Top 16%)1854(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14920

Females

4633

F40-44

4633

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

16082

Females

5324

F40-44

5324

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14920

Females

4633

F40-44

4633

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15694

Females

5156

F40-44

5156

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

15242

Females

4827

F40-44

4827

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15148

Females

4935

F40-44

4935

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14508

Females

4630

F40-44

4630

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14428

Females

4662

F40-44

4662

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13440

Females

4185

F40-44

4185

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15743

Females

5538

F40-44

5538

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14189

Females

4719

F40-44

4719

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14000

Females

4674

F40-44

4674

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13497

Females

4474

F40-44

4474

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12261

Females

3874

F40-44

3874

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8024

Females

1854

F40-44

1854

Passing Analysis

Category:
Athletes Passed
2325
Passed By
956
Net Change
+1369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15937
5K → 10K274310-36#15937#15973
10K → 15K42860+368#15973#15605
15K → 20K176184-8#15605#15613
20K → Half4524+21#15613#15592
Half → 25K18184+97#15592#15495
25K → 30K29273+219#15495#15276
30K → 20M11949+70#15276#15206
20M → 21M15528+127#15206#15079
21M → 35K3654-18#15079#15097
35K → 23M11138+73#15097#15024
23M → 24M9427+67#15024#14957
24M → 40K9816+82#14957#14875
40K → 25.2M709+61#14875#14814
25.2M → Finish2460+246#14814#14568
TOTALS2325956+1369
📊

Passing Visuals

Category:
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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