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BOSTON MARATHON 2023

Emma Fields

Bib: 20137•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 32%
Masters (Masters Women)
#0 / 6539
Top 19%
Division (F40-44)
#0 / 1878
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #13741
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
49:24
Rank: #13989 (-248)
5K → 10K
24:40 | 7:56/mi
15K· 9.32 mi
1:14:13
Rank: #14073 (-84)
10K → 15K
24:49 | 7:59/mi
20K· 12.43 mi
1:39:14
Rank: #13982 (+91)
15K → 20K
25:01 | 8:03/mi
Half· 13.11 mi
1:44:41
Rank: #13990 (-8)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:04:11
Rank: #13825 (+165)
Half → 25K
19:30 | 8:03/mi
30K· 18.64 mi
2:29:40
Rank: #13502 (+323)
25K → 30K
25:29 | 8:12/mi
20M
2:40:51
Rank: #13363 (+139)
30K → 20M
11:11 | 8:14/mi
21M
2:49:55
Rank: #13381 (-18)
20M → 21M
9:04 | 9:04/mi
35K· 21.75 mi
2:55:52
Rank: #13304 (+77)
21M → 35K
5:57 | 7:57/mi
23M
3:06:14
Rank: #13174 (+130)
35K → 23M
10:22 | 8:17/mi
24M
3:14:19
Rank: #13093 (+81)
23M → 24M
8:05 | 8:05/mi
40K· 24.85 mi
3:21:21
Rank: #13021 (+72)
24M → 40K
7:02 | 8:14/mi
25.2M
3:24:25
Rank: #12998 (+23)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:32:45
Rank: #12991 (+7)
25.2M → Finish
8:20 | 8:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:41
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:48:04
Pace8:15 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4824:447:5824:44
7:58
-
10K
6.21 mi11:41:2849:247:5724:40
7:56
-0:02
15K
9.32 mi12:06:171:14:137:5824:49
7:59
+0:03
20K
12.43 mi12:31:181:39:147:5925:01
8:03
+0:04
Half
13.11 mi12:36:451:44:417:595:27
7:59
-0:04
25K
15.53 mi12:56:152:04:118:0019:30
8:03
+0:04
30K
18.64 mi13:21:442:29:408:0225:29
8:12
+0:09
20M
20.00 mi13:32:552:40:518:0311:11
8:14
+0:02
21M
21.00 mi13:41:592:49:558:059:04
9:04
+0:50
35K
21.75 mi13:47:562:55:528:055:57
7:57
-1:07
23M
23.00 mi13:58:183:06:148:0610:22
8:17
+0:20
24M
24.00 mi14:06:233:14:198:068:05
8:05
-0:12
40K
24.85 mi14:13:253:21:218:067:02
8:14
+0:09
25.2M
25.20 mi14:16:293:24:258:073:04
8:54
+0:40
Finish
26.22 mi14:24:493:32:458:078:20
8:11
-0:43

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

7:56 /mi

Average Pace

8:07 /mi

Slowest Pace

9:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:37

94% of race

Time at Steady Pace

12:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi11:16:4824:447:5824:44
7:58
#13741
10K
6.21 mi11:41:2849:247:5724:40
7:56
#13989
15K
9.32 mi12:06:171:14:137:5824:49
7:59
#14073
20K
12.43 mi12:31:181:39:147:5925:01
8:03
#13982
Half
13.11 mi12:36:451:44:417:595:27
7:59
#13990
25K
15.53 mi12:56:152:04:118:0019:30
8:03
#13825
30K
18.64 mi13:21:442:29:408:0225:29
8:12
#13502
20M
20.00 mi13:32:552:40:518:0311:11
8:14
#13363
21M
21.00 mi13:41:592:49:558:059:04
9:04
#13381
35K
21.75 mi13:47:562:55:528:055:57
7:57
#13304
23M
23.00 mi13:58:183:06:148:0610:22
8:17
#13174
24M
24.00 mi14:06:233:14:198:068:05
8:05
#13093
40K
24.85 mi14:13:253:21:218:067:02
8:14
#13021
25.2M
25.20 mi14:16:293:24:258:073:04
8:54
#12998
Finish
26.22 mi14:24:493:32:458:078:20
8:11
#12991
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi137413868386814300(Top 54%)4257(Top 37%)4257(Top 227%)
10K6.21 mi3.10 mi13989-2484035-1674035-16714336(Top 54%)4258(Top 37%)4258(Top 227%)
15K9.32 mi3.11 mi14073-844106-714106-7114300(Top 54%)4257(Top 37%)4257(Top 227%)
20K12.43 mi3.11 mi13982+914074+324074+3213863(Top 52%)4022(Top 35%)4022(Top 214%)
Half13.11 mi0.68 mi13990-84080-64080-614301(Top 54%)4245(Top 37%)4245(Top 226%)
25K15.53 mi2.42 mi13825+1654006+744006+7413103(Top 49%)3687(Top 32%)3687(Top 196%)
30K18.64 mi3.11 mi13502+3233841+1653841+16512371(Top 46%)3398(Top 30%)3398(Top 181%)
20M20.00 mi1.36 mi13363+1393776+653776+6511917(Top 45%)3233(Top 28%)3233(Top 172%)
21M21.00 mi1.00 mi13381-183803-273803-2713805(Top 52%)4383(Top 38%)4383(Top 233%)
35K21.75 mi0.75 mi13304+773774+293774+2911834(Top 44%)3341(Top 29%)3341(Top 178%)
23M23.00 mi1.25 mi13174+1303718+563718+5611773(Top 44%)3395(Top 30%)3395(Top 181%)
24M24.00 mi1.00 mi13093+813703+153703+1511861(Top 45%)3523(Top 31%)3523(Top 188%)
40K24.85 mi0.85 mi13021+723689+143689+1411574(Top 43%)3452(Top 30%)3452(Top 184%)
25.2M25.20 mi0.35 mi12998+233682+73682+711973(Top 45%)3711(Top 32%)3711(Top 198%)
Finish26.22 mi1.02 mi12991+73695-133695-1313303(Top 50%)4362(Top 38%)4362(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14300

Females

4257

F40-44

4257

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

14336

Females

4258

F40-44

4258

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14300

Females

4257

F40-44

4257

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13863

Females

4022

F40-44

4022

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14301

Females

4245

F40-44

4245

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13103

Females

3687

F40-44

3687

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

12371

Females

3398

F40-44

3398

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11917

Females

3233

F40-44

3233

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

13805

Females

4383

F40-44

4383

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11834

Females

3341

F40-44

3341

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11773

Females

3395

F40-44

3395

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11861

Females

3523

F40-44

3523

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11574

Females

3452

F40-44

3452

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11973

Females

3711

F40-44

3711

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13303

Females

4362

F40-44

4362

Passing Analysis

Category:
Athletes Passed
1986
Passed By
1236
Net Change
+750
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13741
5K → 10K182430-248#13741#13989
10K → 15K159243-84#13989#14073
15K → 20K222131+91#14073#13982
20K → Half2937-8#13982#13990
Half → 25K21954+165#13990#13825
25K → 30K36744+323#13825#13502
30K → 20M15920+139#13502#13363
20M → 21M8199-18#13363#13381
21M → 35K10023+77#13381#13304
35K → 23M15626+130#13304#13174
23M → 24M11534+81#13174#13093
24M → 40K9725+72#13093#13021
40K → 25.2M3714+23#13021#12998
25.2M → Finish6356+7#12998#12991
TOTALS19861236+750
📊

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