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BOSTON MARATHON 2023

Forrester Safford

Bib: 3817•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
Masters (Masters Men)
#0 / 9891
Top 22%
Division (M40-44)
#0 / 2241
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #3966
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
41:45
Rank: #4190 (-224)
5K → 10K
20:50 | 6:42/mi
15K· 9.32 mi
1:03:04
Rank: #4664 (-474)
10K → 15K
21:19 | 6:52/mi
20K· 12.43 mi
1:24:33
Rank: #4886 (-222)
15K → 20K
21:29 | 6:55/mi
Half· 13.11 mi
1:29:15
Rank: #4942 (-56)
20K → Half
4:42 | 6:53/mi
25K· 15.53 mi
1:46:22
Rank: #5166 (-224)
Half → 25K
17:07 | 7:04/mi
30K· 18.64 mi
2:09:35
Rank: #5538 (-372)
25K → 30K
23:13 | 7:28/mi
20M
2:20:13
Rank: #5710 (-172)
30K → 20M
10:38 | 7:49/mi
21M
2:28:29
Rank: #5824 (-114)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:34:11
Rank: #5894 (-70)
21M → 35K
5:42 | 7:37/mi
23M
2:44:14
Rank: #6048 (-154)
35K → 23M
10:03 | 8:02/mi
24M
2:52:08
Rank: #6146 (-98)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
2:58:49
Rank: #6201 (-55)
24M → 40K
6:41 | 7:49/mi
25.2M
3:01:33
Rank: #6175 (+26)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:08:47
Rank: #6131 (+44)
25.2M → Finish
7:14 | 7:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:15
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:39:32
Pace7:36 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1720:556:4420:55
6:44
-
10K
6.21 mi10:43:0741:456:4320:50
6:42
-0:02
15K
9.32 mi11:04:261:03:046:4621:19
6:52
+0:10
20K
12.43 mi11:25:551:24:336:4821:29
6:55
+0:03
Half
13.11 mi11:30:371:29:156:484:42
6:53
-0:02
25K
15.53 mi11:47:441:46:226:5117:07
7:04
+0:11
30K
18.64 mi12:10:572:09:356:5723:13
7:28
+0:24
20M
20.00 mi12:21:352:20:137:0110:38
7:49
+0:21
21M
21.00 mi12:29:512:28:297:048:16
8:16
+0:27
35K
21.75 mi12:35:332:34:117:055:42
7:37
-0:39
23M
23.00 mi12:45:362:44:147:0810:03
8:02
+0:25
24M
24.00 mi12:53:302:52:087:107:54
7:54
-0:08
40K
24.85 mi13:00:112:58:497:126:41
7:49
-0:05
25.2M
25.20 mi13:02:553:01:337:122:44
7:56
+0:07
Finish
26.22 mi13:10:093:08:477:127:14
7:06
-0:50

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

6:42 /mi

Average Pace

7:12 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:36

60% of race

Time at Steady Pace

28:55

15% of race

Time at Slower Pace

46:16

25% of race

Average Pace: 7:12 /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 mi10:22:1720:556:4420:55
6:44
#3966
10K
6.21 mi10:43:0741:456:4320:50
6:42
#4190
15K
9.32 mi11:04:261:03:046:4621:19
6:52
#4664
20K
12.43 mi11:25:551:24:336:4821:29
6:55
#4886
Half
13.11 mi11:30:371:29:156:484:42
6:53
#4942
25K
15.53 mi11:47:441:46:226:5117:07
7:04
#5166
30K
18.64 mi12:10:572:09:356:5723:13
7:28
#5538
20M
20.00 mi12:21:352:20:137:0110:38
7:49
#5710
21M
21.00 mi12:29:512:28:297:048:16
8:16
#5824
35K
21.75 mi12:35:332:34:117:055:42
7:37
#5894
23M
23.00 mi12:45:362:44:147:0810:03
8:02
#6048
24M
24.00 mi12:53:302:52:087:107:54
7:54
#6146
40K
24.85 mi13:00:112:58:497:126:41
7:49
#6201
25.2M
25.20 mi13:02:553:01:337:122:44
7:56
#6175
Finish
26.22 mi13:10:093:08:477:127:14
7:06
#6131
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3966372337235671(Top 21%)5208(Top 34%)5208(Top 232%)
10K6.21 mi3.10 mi4190-2243928-2053928-2054396(Top 17%)4115(Top 27%)4115(Top 184%)
15K9.32 mi3.11 mi4664-4744349-4214349-4215671(Top 21%)5208(Top 34%)5208(Top 232%)
20K12.43 mi3.11 mi4886-2224551-2024551-2025444(Top 20%)5025(Top 33%)5025(Top 224%)
Half13.11 mi0.68 mi4942-564598-474598-475924(Top 22%)5433(Top 36%)5433(Top 242%)
25K15.53 mi2.42 mi5166-2244790-1924790-1925896(Top 22%)5368(Top 35%)5368(Top 240%)
30K18.64 mi3.11 mi5538-3725093-3035093-3037025(Top 26%)6083(Top 40%)6083(Top 271%)
20M20.00 mi1.36 mi5710-1725231-1385231-1389015(Top 34%)7190(Top 47%)7190(Top 321%)
21M21.00 mi1.00 mi5824-1145308-775308-778966(Top 34%)7035(Top 46%)7035(Top 314%)
35K21.75 mi0.75 mi5894-705353-455353-459344(Top 35%)7249(Top 48%)7249(Top 323%)
23M23.00 mi1.25 mi6048-1545456-1035456-1039897(Top 37%)7412(Top 49%)7412(Top 331%)
24M24.00 mi1.00 mi6146-985521-655521-6510475(Top 39%)7630(Top 50%)7630(Top 340%)
40K24.85 mi0.85 mi6201-555552-315552-318744(Top 33%)6668(Top 44%)6668(Top 298%)
25.2M25.20 mi0.35 mi6175+265526+265526+266034(Top 23%)4965(Top 33%)4965(Top 222%)
Finish26.22 mi1.02 mi6131+445475+515475+515810(Top 22%)4802(Top 32%)4802(Top 214%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5671

Males

5208

M40-44

5208

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4396

Males

4115

M40-44

4115

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5671

Males

5208

M40-44

5208

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5444

Males

5025

M40-44

5025

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5924

Males

5433

M40-44

5433

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5896

Males

5368

M40-44

5368

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7025

Males

6083

M40-44

6083

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9015

Males

7190

M40-44

7190

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

8966

Males

7035

M40-44

7035

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9344

Males

7249

M40-44

7249

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9897

Males

7412

M40-44

7412

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10475

Males

7630

M40-44

7630

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8744

Males

6668

M40-44

6668

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6034

Males

4965

M40-44

4965

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5810

Males

4802

M40-44

4802

Passing Analysis

Category:
Athletes Passed
577
Passed By
2742
Net Change
-2165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3966
5K → 10K124348-224#3966#4190
10K → 15K35509-474#4190#4664
15K → 20K41263-222#4664#4886
20K → Half460-56#4886#4942
Half → 25K54278-224#4942#5166
25K → 30K55427-372#5166#5538
30K → 20M15187-172#5538#5710
20M → 21M31145-114#5710#5824
21M → 35K1787-70#5824#5894
35K → 23M29183-154#5894#6048
23M → 24M33131-98#6048#6146
24M → 40K3388-55#6146#6201
40K → 25.2M3610+26#6201#6175
25.2M → Finish7026+44#6175#6131
TOTALS5772742-2165
📊

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