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BOSTON MARATHON 2023

Margaret Goldberg

Bib: 23337•F

IL

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
26:58
Rank: #18752
Start → 5K
26:58 | 8:41/mi
10K· 6.21 mi
54:06
Rank: #19139 (-387)
5K → 10K
27:08 | 8:44/mi
15K· 9.32 mi
1:21:22
Rank: #19212 (-73)
10K → 15K
27:16 | 8:47/mi
20K· 12.43 mi
1:48:55
Rank: #19141 (+71)
15K → 20K
27:33 | 8:52/mi
Half· 13.11 mi
1:54:52
Rank: #19131 (+10)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:16:17
Rank: #18961 (+170)
Half → 25K
21:25 | 8:50/mi
30K· 18.64 mi
2:44:32
Rank: #18722 (+239)
25K → 30K
28:15 | 9:06/mi
20M
2:57:01
Rank: #18617 (+105)
30K → 20M
12:29 | 9:11/mi
21M
3:06:50
Rank: #18535 (+82)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:13:40
Rank: #18517 (+18)
21M → 35K
6:50 | 9:08/mi
23M
3:25:25
Rank: #18469 (+48)
35K → 23M
11:45 | 9:23/mi
24M
3:34:36
Rank: #18460 (+9)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:42:40
Rank: #18445 (+15)
24M → 40K
8:04 | 9:26/mi
25.2M
3:46:14
Rank: #18450 (-5)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
3:55:38
Rank: #18488 (-38)
25.2M → Finish
9:24 | 9:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:52
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:00:46
Pace9:13 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0426:588:4126:58
8:41
-
10K
6.21 mi11:51:1254:068:4227:08
8:44
+0:03
15K
9.32 mi12:18:281:21:228:4427:16
8:47
+0:03
20K
12.43 mi12:46:011:48:558:4627:33
8:52
+0:05
Half
13.11 mi12:51:581:54:528:465:57
8:43
-0:09
25K
15.53 mi13:13:232:16:178:4621:25
8:50
+0:07
30K
18.64 mi13:41:382:44:328:5028:15
9:06
+0:16
20M
20.00 mi13:54:072:57:018:5112:29
9:11
+0:05
21M
21.00 mi14:03:563:06:508:549:49
9:49
+0:38
35K
21.75 mi14:10:463:13:408:546:50
9:08
-0:41
23M
23.00 mi14:22:313:25:258:5611:45
9:23
+0:15
24M
24.00 mi14:31:423:34:368:579:11
9:11
-0:12
40K
24.85 mi14:39:463:42:408:588:04
9:26
+0:15
25.2M
25.20 mi14:43:203:46:148:593:34
10:21
+0:55
Finish
26.22 mi14:52:443:55:389:009:24
9:13
-1:08

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

8:41 /mi

Average Pace

9:00 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:42:15

94% of race

Time at Steady Pace

9:49

4% of race

Time at Slower Pace

3:34

2% 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 mi11:24:0426:588:4126:58
8:41
#18752
10K
6.21 mi11:51:1254:068:4227:08
8:44
#19139
15K
9.32 mi12:18:281:21:228:4427:16
8:47
#19212
20K
12.43 mi12:46:011:48:558:4627:33
8:52
#19141
Half
13.11 mi12:51:581:54:528:465:57
8:43
#19131
25K
15.53 mi13:13:232:16:178:4621:25
8:50
#18961
30K
18.64 mi13:41:382:44:328:5028:15
9:06
#18722
20M
20.00 mi13:54:072:57:018:5112:29
9:11
#18617
21M
21.00 mi14:03:563:06:508:549:49
9:49
#18535
35K
21.75 mi14:10:463:13:408:546:50
9:08
#18517
23M
23.00 mi14:22:313:25:258:5611:45
9:23
#18469
24M
24.00 mi14:31:423:34:368:579:11
9:11
#18460
40K
24.85 mi14:39:463:42:408:588:04
9:26
#18445
25.2M
25.20 mi14:43:203:46:148:593:34
10:21
#18450
Finish
26.22 mi14:52:443:55:389:009:24
9:13
#18488
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi187527042704219383(Top 73%)7318(Top 64%)7318(Top 898%)
10K6.21 mi3.10 mi19139-3877240-1987240-19819600(Top 74%)7447(Top 65%)7447(Top 914%)
15K9.32 mi3.11 mi19212-737256-167256-1619383(Top 73%)7318(Top 64%)7318(Top 898%)
20K12.43 mi3.11 mi19141+717200+567200+5619054(Top 72%)7119(Top 62%)7119(Top 873%)
Half13.11 mi0.68 mi19131+107197+37197+319096(Top 72%)7138(Top 62%)7138(Top 876%)
25K15.53 mi2.42 mi18961+1707097+1007097+10018148(Top 68%)6633(Top 58%)6633(Top 814%)
30K18.64 mi3.11 mi18722+2396986+1116986+11117658(Top 66%)6445(Top 56%)6445(Top 791%)
20M20.00 mi1.36 mi18617+1056943+436943+4317502(Top 66%)6455(Top 57%)6455(Top 792%)
21M21.00 mi1.00 mi18535+826897+466897+4617341(Top 65%)6398(Top 56%)6398(Top 785%)
35K21.75 mi0.75 mi18517+186895+26895+218485(Top 69%)7093(Top 62%)7093(Top 870%)
23M23.00 mi1.25 mi18469+486883+126883+1217895(Top 67%)6806(Top 60%)6806(Top 835%)
24M24.00 mi1.00 mi18460+96884-16884-118017(Top 68%)6912(Top 61%)6912(Top 848%)
40K24.85 mi0.85 mi18445+156891-76891-718119(Top 68%)7005(Top 61%)7005(Top 860%)
25.2M25.20 mi0.35 mi18450-56897-66897-618639(Top 70%)7301(Top 64%)7301(Top 896%)
Finish26.22 mi1.02 mi18488-386926-296926-2919040(Top 72%)7456(Top 65%)7456(Top 915%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19383

Females

7318

F55-59

7318

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19600

Females

7447

F55-59

7447

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19383

Females

7318

F55-59

7318

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19054

Females

7119

F55-59

7119

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

19096

Females

7138

F55-59

7138

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18148

Females

6633

F55-59

6633

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17658

Females

6445

F55-59

6445

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17502

Females

6455

F55-59

6455

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17341

Females

6398

F55-59

6398

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18485

Females

7093

F55-59

7093

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17895

Females

6806

F55-59

6806

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18017

Females

6912

F55-59

6912

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18119

Females

7005

F55-59

7005

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18639

Females

7301

F55-59

7301

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19040

Females

7456

F55-59

7456

Passing Analysis

Category:
Athletes Passed
1656
Passed By
1392
Net Change
+264
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18752
5K → 10K182569-387#18752#19139
10K → 15K146219-73#19139#19212
15K → 20K194123+71#19212#19141
20K → Half3323+10#19141#19131
Half → 25K20434+170#19131#18961
25K → 30K29657+239#18961#18722
30K → 20M13631+105#18722#18617
20M → 21M12947+82#18617#18535
21M → 35K5234+18#18535#18517
35K → 23M10355+48#18517#18469
23M → 24M5950+9#18469#18460
24M → 40K6045+15#18460#18445
40K → 25.2M2429-5#18445#18450
25.2M → Finish3876-38#18450#18488
TOTALS16561392+264
📊

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