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BOSTON MARATHON 2023

Brenda Guitard

Bib: 23487•F

NB

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:27
Rank: #17657
Start → 5K
26:27 | 8:31/mi
10K· 6.21 mi
52:23
Rank: #17423 (+234)
5K → 10K
25:56 | 8:21/mi
15K· 9.32 mi
1:18:47
Rank: #17537 (-114)
10K → 15K
26:24 | 8:30/mi
20K· 12.43 mi
1:45:18
Rank: #17400 (+137)
15K → 20K
26:31 | 8:32/mi
Half· 13.11 mi
1:51:03
Rank: #17380 (+20)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:12:04
Rank: #17332 (+48)
Half → 25K
21:01 | 8:40/mi
30K· 18.64 mi
2:41:00
Rank: #17587 (-255)
25K → 30K
28:56 | 9:19/mi
20M
2:53:45
Rank: #17650 (-63)
30K → 20M
12:45 | 9:23/mi
21M
3:05:01
Rank: #18027 (-377)
20M → 21M
11:16 | 11:16/mi
35K· 21.75 mi
3:11:24
Rank: #17951 (+76)
21M → 35K
6:23 | 8:32/mi
23M
3:23:26
Rank: #18030 (-79)
35K → 23M
12:02 | 9:37/mi
24M
3:32:23
Rank: #17979 (+51)
23M → 24M
8:57 | 8:57/mi
40K· 24.85 mi
3:41:13
Rank: #18152 (-173)
24M → 40K
8:50 | 10:20/mi
25.2M
3:45:20
Rank: #18277 (-125)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
3:55:36
Rank: #18480 (-203)
25.2M → Finish
10:16 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:03
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:04:33
Pace9:30 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3026:278:3126:27
8:31
-
10K
6.21 mi11:48:2652:238:2625:56
8:21
-0:10
15K
9.32 mi12:14:501:18:478:2726:24
8:30
+0:09
20K
12.43 mi12:41:211:45:188:2826:31
8:32
+0:02
Half
13.11 mi12:47:061:51:038:285:45
8:26
-0:06
25K
15.53 mi13:08:072:12:048:3021:01
8:40
+0:14
30K
18.64 mi13:37:032:41:008:3828:56
9:19
+0:39
20M
20.00 mi13:49:482:53:458:4112:45
9:23
+0:04
21M
21.00 mi14:01:043:05:018:4911:16
11:16
+1:53
35K
21.75 mi14:07:273:11:248:486:23
8:32
-2:44
23M
23.00 mi14:19:293:23:268:5112:02
9:37
+1:05
24M
24.00 mi14:28:263:32:238:518:57
8:57
-0:40
40K
24.85 mi14:37:163:41:138:548:50
10:20
+1:23
25.2M
25.20 mi14:41:233:45:208:574:07
11:56
+1:36
Finish
26.22 mi14:51:393:55:369:0010:16
10:04
-1:52

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

8:21 /mi

Average Pace

9:00 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:56

11% of race

Time at Steady Pace

2:43:09

69% of race

Time at Slower Pace

46:31

20% of race

Average Pace: 8:59 /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 mi11:22:3026:278:3126:27
8:31
#17657
10K
6.21 mi11:48:2652:238:2625:56
8:21
#17423
15K
9.32 mi12:14:501:18:478:2726:24
8:30
#17537
20K
12.43 mi12:41:211:45:188:2826:31
8:32
#17400
Half
13.11 mi12:47:061:51:038:285:45
8:26
#17380
25K
15.53 mi13:08:072:12:048:3021:01
8:40
#17332
30K
18.64 mi13:37:032:41:008:3828:56
9:19
#17587
20M
20.00 mi13:49:482:53:458:4112:45
9:23
#17650
21M
21.00 mi14:01:043:05:018:4911:16
11:16
#18027
35K
21.75 mi14:07:273:11:248:486:23
8:32
#17951
23M
23.00 mi14:19:293:23:268:5112:02
9:37
#18030
24M
24.00 mi14:28:263:32:238:518:57
8:57
#17979
40K
24.85 mi14:37:163:41:138:548:50
10:20
#18152
25.2M
25.20 mi14:41:233:45:208:574:07
11:56
#18277
Finish
26.22 mi14:51:393:55:369:0010:16
10:04
#18480
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi176576349634917806(Top 67%)6392(Top 56%)6392(Top 784%)
10K6.21 mi3.10 mi17423+2346179+1706179+17017239(Top 65%)6028(Top 53%)6028(Top 740%)
15K9.32 mi3.11 mi17537-1146234-556234-5517806(Top 67%)6392(Top 56%)6392(Top 784%)
20K12.43 mi3.11 mi17400+1376160+746160+7417103(Top 64%)5992(Top 52%)5992(Top 735%)
Half13.11 mi0.68 mi17380+206150+106150+1017389(Top 65%)6135(Top 54%)6135(Top 753%)
25K15.53 mi2.42 mi17332+486141+96141+917223(Top 65%)6132(Top 54%)6132(Top 752%)
30K18.64 mi3.11 mi17587-2556312-1716312-17118687(Top 70%)7025(Top 61%)7025(Top 862%)
20M20.00 mi1.36 mi17650-636358-466358-4618399(Top 69%)6967(Top 61%)6967(Top 855%)
21M21.00 mi1.00 mi18027-3776607-2496607-24921408(Top 80%)8686(Top 76%)8686(Top 1066%)
35K21.75 mi0.75 mi17951+766569+386569+3815540(Top 58%)5446(Top 48%)5446(Top 668%)
23M23.00 mi1.25 mi18030-796626-576626-5718780(Top 71%)7284(Top 64%)7284(Top 894%)
24M24.00 mi1.00 mi17979+516614+126614+1217023(Top 64%)6373(Top 56%)6373(Top 782%)
40K24.85 mi0.85 mi18152-1736727-1136727-11320824(Top 78%)8500(Top 74%)8500(Top 1043%)
25.2M25.20 mi0.35 mi18277-1256806-796806-7922379(Top 84%)9327(Top 82%)9327(Top 1144%)
Finish26.22 mi1.02 mi18480-2036921-1156921-11521968(Top 83%)9097(Top 80%)9097(Top 1116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

17806

Females

6392

F55-59

6392

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

17239

Females

6028

F55-59

6028

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

17806

Females

6392

F55-59

6392

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17103

Females

5992

F55-59

5992

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17389

Females

6135

F55-59

6135

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17223

Females

6132

F55-59

6132

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18687

Females

7025

F55-59

7025

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18399

Females

6967

F55-59

6967

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21408

Females

8686

F55-59

8686

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

15540

Females

5446

F55-59

5446

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18780

Females

7284

F55-59

7284

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17023

Females

6373

F55-59

6373

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20824

Females

8500

F55-59

8500

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22379

Females

9327

F55-59

9327

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

21968

Females

9097

F55-59

9097

Passing Analysis

Category:
Athletes Passed
1452
Passed By
2275
Net Change
-823
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17657
5K → 10K455221+234#17657#17423
10K → 15K146260-114#17423#17537
15K → 20K239102+137#17537#17400
20K → Half3616+20#17400#17380
Half → 25K14294+48#17380#17332
25K → 30K105360-255#17332#17587
30K → 20M58121-63#17587#17650
20M → 21M15392-377#17650#18027
21M → 35K848+76#18027#17951
35K → 23M57136-79#17951#18030
23M → 24M8029+51#18030#17979
24M → 40K18191-173#17979#18152
40K → 25.2M6131-125#18152#18277
25.2M → Finish11214-203#18277#18480
TOTALS14522275-823
📊

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