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BOSTON MARATHON 2023

Chantal Bouffard

QC

Bib: 19012 F

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 14%
Division (F50-54)
#0 / 1207
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:58/mi
24:44
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:44/mi
48:47
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:42/mi
1:12:41
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:46/mi
1:36:48
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:45/mi
1:42:05
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:46/mi
2:00:56
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:05/mi
2:26:03
↑ 181↓ 1480.2%
138 ft elev
20M
8:15/mi
2:37:16
↑ 64↓ 500.2%
148 ft elev
21M
8:52/mi
2:46:08
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:48/mi
2:51:58
↑ 17↓ 861.7%
156 ft elev
23M
8:14/mi
3:02:16
↑ 23↓ 630.6%
116 ft elev
24M
8:10/mi
3:10:26
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:33/mi
3:17:45
↓ 200.3%
20 ft elev
25.2M
8:51/mi
3:20:48
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:07/mi
3:29:04
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:05
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:46:59
Pace8:10 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3724:447:5824:44
7:58
-
10K
6.21 mi11:40:4048:477:5124:03
7:44
-0:14
15K
9.32 mi12:04:341:12:417:4823:54
7:42
-0:02
20K
12.43 mi12:28:411:36:487:4724:07
7:46
+0:04
Half
13.11 mi12:33:581:42:057:475:17
7:45
-0:01
25K
15.53 mi12:52:492:00:567:4718:51
7:46
+0:01
30K
18.64 mi13:17:562:26:037:5025:07
8:05
+0:19
20M
20.00 mi13:29:092:37:167:5211:13
8:15
+0:10
21M
21.00 mi13:38:012:46:087:558:52
8:52
+0:37
35K
21.75 mi13:43:512:51:587:545:50
7:48
-1:04
23M
23.00 mi13:54:093:02:167:5510:18
8:14
+0:26
24M
24.00 mi14:02:193:10:267:568:10
8:10
-0:04
40K
24.85 mi14:09:383:17:457:577:19
8:33
+0:23
25.2M
25.20 mi14:12:413:20:487:583:03
8:51
+0:18
Finish
26.22 mi14:20:573:29:047:598:16
8:07
-0:44

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

7:42 /mi

Average Pace

7:59 /mi

Slowest Pace

8:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:50

91% of race

Time at Steady Pace

19:14

9% of race

Time at Slower Pace

0:00

0% 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 mi11:16:3724:447:5824:44
7:58
#13737
10K
6.21 mi11:40:4048:477:5124:03
7:44
#13202
15K
9.32 mi12:04:341:12:417:4823:54
7:42
#12670
20K
12.43 mi12:28:411:36:487:4724:07
7:46
#12308
Half
13.11 mi12:33:581:42:057:475:17
7:45
#12301
25K
15.53 mi12:52:492:00:567:4718:51
7:46
#12056
30K
18.64 mi13:17:562:26:037:5025:07
8:05
#11895
20M
20.00 mi13:29:092:37:167:5211:13
8:15
#11898
21M
21.00 mi13:38:012:46:087:558:52
8:52
#11961
35K
21.75 mi13:43:512:51:587:545:50
7:48
#11903
23M
23.00 mi13:54:093:02:167:5510:18
8:14
#11847
24M
24.00 mi14:02:193:10:267:568:10
8:10
#11878
40K
24.85 mi14:09:383:17:457:577:19
8:33
#11942
25.2M
25.20 mi14:12:413:20:487:583:03
8:51
#11934
Finish
26.22 mi14:20:573:29:047:598:16
8:07
#11972
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi13737386438641180127952795
10K6.21 mi3.10 mi13202+5353567+2973567+2971260532083208
15K9.32 mi3.11 mi12670+5323268+2993268+2991180127952795
20K12.43 mi3.11 mi12308+3623094+1743094+1741143526562656
Half13.11 mi0.68 mi12301+73095-13095-11229330853085
25K15.53 mi2.42 mi12056+2452975+1202975+1201091724462446
30K18.64 mi3.11 mi11895+1612920+552920+551155329332933
20M20.00 mi1.36 mi11898-32936-162936-161205933073307
21M21.00 mi1.00 mi11961-632990-542990-541266037563756
35K21.75 mi0.75 mi11903+582971+192971+191069527292729
23M23.00 mi1.25 mi11847+562956+152956+151139132063206
24M24.00 mi1.00 mi11878-312999-432999-431239637933793
40K24.85 mi0.85 mi11942-643066-673066-671370645734573
25.2M25.20 mi0.35 mi11934+8306630661163135273527
Finish26.22 mi1.02 mi11972-383109-433109-431287241434143

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11801

Females

2795

F50-54

2795

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12605

Females

3208

F50-54

3208

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11801

Females

2795

F50-54

2795

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

11435

Females

2656

F50-54

2656

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12293

Females

3085

F50-54

3085

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10917

Females

2446

F50-54

2446

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11553

Females

2933

F50-54

2933

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12059

Females

3307

F50-54

3307

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12660

Females

3756

F50-54

3756

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10695

Females

2729

F50-54

2729

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11391

Females

3206

F50-54

3206

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12396

Females

3793

F50-54

3793

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13706

Females

4573

F50-54

4573

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11631

Females

3527

F50-54

3527

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12872

Females

4143

F50-54

4143

Passing Analysis

Category:
Athletes Passed
2756
Passed By
991
Net Change
+1765
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13737
5K → 10K651116+535#13737#13202
10K → 15K57644+532#13202#12670
15K → 20K40038+362#12670#12308
20K → Half3124+7#12308#12301
Half → 25K27126+245#12301#12056
25K → 30K276115+161#12056#11895
30K → 20M98101-3#11895#11898
20M → 21M71134-63#11898#11961
21M → 35K7618+58#11961#11903
35K → 23M11660+56#11903#11847
23M → 24M5586-31#11847#11878
24M → 40K44108-64#11878#11942
40K → 25.2M3123+8#11942#11934
25.2M → Finish6098-38#11934#11972
TOTALS2756991+1765

Passing Charts

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