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BOSTON MARATHON 2023

Daniel Fields

Bib: 4804•M

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 48%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #4383
Start → 5K
21:02 | 6:46/mi
10K· 6.21 mi
42:13
Rank: #4926 (-543)
5K → 10K
21:11 | 6:49/mi
15K· 9.32 mi
1:04:01
Rank: #5620 (-694)
10K → 15K
21:48 | 7:01/mi
20K· 12.43 mi
1:26:28
Rank: #6093 (-473)
15K → 20K
22:27 | 7:14/mi
Half· 13.11 mi
1:31:23
Rank: #6186 (-93)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:49:19
Rank: #6432 (-246)
Half → 25K
17:56 | 7:24/mi
30K· 18.64 mi
2:14:37
Rank: #7103 (-671)
25K → 30K
25:18 | 8:09/mi
20M
2:26:19
Rank: #7556 (-453)
30K → 20M
11:42 | 8:37/mi
21M
2:35:28
Rank: #7888 (-332)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
2:41:45
Rank: #8151 (-263)
21M → 35K
6:17 | 8:24/mi
23M
2:52:26
Rank: #8443 (-292)
35K → 23M
10:41 | 8:32/mi
24M
3:00:30
Rank: #8569 (-126)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:07:36
Rank: #8675 (-106)
24M → 40K
7:06 | 8:18/mi
25.2M
3:10:37
Rank: #8704 (-29)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:19:02
Rank: #8894 (-190)
25.2M → Finish
8:25 | 8:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:23
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:47:39
Pace8:13 /mi
📊Positive Split: 17.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5721:026:4621:02
6:46
-
10K
6.21 mi10:44:0842:136:4821:11
6:49
+0:03
15K
9.32 mi11:05:561:04:016:5221:48
7:01
+0:12
20K
12.43 mi11:28:231:26:286:5722:27
7:14
+0:13
Half
13.11 mi11:33:181:31:236:584:55
7:12
-0:02
25K
15.53 mi11:51:141:49:197:0217:56
7:24
+0:12
30K
18.64 mi12:16:322:14:377:1325:18
8:09
+0:45
20M
20.00 mi12:28:142:26:197:1911:42
8:37
+0:28
21M
21.00 mi12:37:232:35:287:249:09
9:09
+0:32
35K
21.75 mi12:43:402:41:457:266:17
8:24
-0:45
23M
23.00 mi12:54:212:52:267:3010:41
8:32
+0:08
24M
24.00 mi13:02:253:00:307:318:04
8:04
-0:28
40K
24.85 mi13:09:313:07:367:337:06
8:18
+0:14
25.2M
25.20 mi13:12:323:10:377:343:01
8:45
+0:27
Finish
26.22 mi13:20:573:19:027:368:25
8:16
-0:29

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

6:46 /mi

Average Pace

7:36 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:19

55% of race

Time at Steady Pace

55:10

28% of race

Time at Slower Pace

34:33

17% of race

Average Pace: 7:35 /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 mi10:22:5721:026:4621:02
6:46
#4383
10K
6.21 mi10:44:0842:136:4821:11
6:49
#4926
15K
9.32 mi11:05:561:04:016:5221:48
7:01
#5620
20K
12.43 mi11:28:231:26:286:5722:27
7:14
#6093
Half
13.11 mi11:33:181:31:236:584:55
7:12
#6186
25K
15.53 mi11:51:141:49:197:0217:56
7:24
#6432
30K
18.64 mi12:16:322:14:377:1325:18
8:09
#7103
20M
20.00 mi12:28:142:26:197:1911:42
8:37
#7556
21M
21.00 mi12:37:232:35:287:249:09
9:09
#7888
35K
21.75 mi12:43:402:41:457:266:17
8:24
#8151
23M
23.00 mi12:54:212:52:267:3010:41
8:32
#8443
24M
24.00 mi13:02:253:00:307:318:04
8:04
#8569
40K
24.85 mi13:09:313:07:367:337:06
8:18
#8675
25.2M
25.20 mi13:12:323:10:377:343:01
8:45
#8704
Finish
26.22 mi13:20:573:19:027:368:25
8:16
#8894
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4383409440946664(Top 25%)5988(Top 39%)5988(Top 113%)
10K6.21 mi3.10 mi4926-5434571-4774571-4775484(Top 21%)5054(Top 33%)5054(Top 96%)
15K9.32 mi3.11 mi5620-6945173-6025173-6026664(Top 25%)5988(Top 39%)5988(Top 113%)
20K12.43 mi3.11 mi6093-4735546-3735546-3737266(Top 27%)6399(Top 42%)6399(Top 121%)
Half13.11 mi0.68 mi6186-935625-795625-797903(Top 30%)6851(Top 45%)6851(Top 130%)
25K15.53 mi2.42 mi6432-2465803-1785803-1787991(Top 30%)6802(Top 45%)6802(Top 129%)
30K18.64 mi3.11 mi7103-6716290-4876290-48711928(Top 45%)8766(Top 58%)8766(Top 166%)
20M20.00 mi1.36 mi7556-4536566-2766566-27614288(Top 54%)9672(Top 64%)9672(Top 183%)
21M21.00 mi1.00 mi7888-3326777-2116777-21114176(Top 53%)9572(Top 63%)9572(Top 181%)
35K21.75 mi0.75 mi8151-2636920-1436920-14314653(Top 55%)9704(Top 64%)9704(Top 184%)
23M23.00 mi1.25 mi8443-2927090-1707090-17013400(Top 50%)9088(Top 60%)9088(Top 172%)
24M24.00 mi1.00 mi8569-1267144-547144-5411654(Top 44%)8222(Top 54%)8222(Top 156%)
40K24.85 mi0.85 mi8675-1067186-427186-4212014(Top 45%)8311(Top 55%)8311(Top 157%)
25.2M25.20 mi0.35 mi8704-297188-27188-210936(Top 41%)7747(Top 51%)7747(Top 147%)
Finish26.22 mi1.02 mi8894-1907282-947282-9413798(Top 52%)9139(Top 60%)9139(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6664

Males

5988

M18-39

5988

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5484

Males

5054

M18-39

5054

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6664

Males

5988

M18-39

5988

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7266

Males

6399

M18-39

6399

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

7903

Males

6851

M18-39

6851

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7991

Males

6802

M18-39

6802

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

11928

Males

8766

M18-39

8766

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14288

Males

9672

M18-39

9672

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14176

Males

9572

M18-39

9572

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14653

Males

9704

M18-39

9704

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13400

Males

9088

M18-39

9088

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11654

Males

8222

M18-39

8222

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12014

Males

8311

M18-39

8311

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10936

Males

7747

M18-39

7747

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13798

Males

9139

M18-39

9139

Passing Analysis

Category:
Athletes Passed
284
Passed By
4795
Net Change
-4511
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4383
5K → 10K51594-543#4383#4926
10K → 15K10704-694#4926#5620
15K → 20K24497-473#5620#6093
20K → Half194-93#6093#6186
Half → 25K29275-246#6186#6432
25K → 30K17688-671#6432#7103
30K → 20M12465-453#7103#7556
20M → 21M7339-332#7556#7888
21M → 35K10273-263#7888#8151
35K → 23M21313-292#8151#8443
23M → 24M42168-126#8443#8569
24M → 40K28134-106#8569#8675
40K → 25.2M1847-29#8675#8704
25.2M → Finish14204-190#8704#8894
TOTALS2844795-4511
📊

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