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BOSTON MARATHON 2025

Stephen Flagg

CA

Bib: 19996 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 47%
Division (M60-64)
#0 / 1259
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:48/mi
24:15
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:50/mi
48:34
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:55/mi
1:13:10
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:56/mi
1:37:49
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:55/mi
1:43:13
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:02/mi
2:02:41
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:13/mi
2:28:14
↑ 181↓ 1480.2%
138 ft elev
20M
8:06/mi
2:39:15
↑ 64↓ 500.2%
148 ft elev
21M
8:18/mi
2:47:33
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:53/mi
2:53:27
↑ 17↓ 861.7%
156 ft elev
23M
7:58/mi
3:03:25
↑ 23↓ 630.6%
116 ft elev
24M
7:30/mi
3:10:55
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:49/mi
3:17:36
↓ 200.3%
20 ft elev
25.2M
8:10/mi
3:20:25
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:30/mi
3:28:04
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:13
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:44:51
Pace8:00 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3424:157:4824:15
7:48
-
10K
6.21 mi11:39:5348:347:4924:19
7:50
+0:02
15K
9.32 mi12:04:291:13:107:5124:36
7:55
+0:05
20K
12.43 mi12:29:081:37:497:5224:39
7:56
+0:01
Half
13.11 mi12:34:321:43:137:525:24
7:55
-0:01
25K
15.53 mi12:54:002:02:417:5419:28
8:02
+0:07
30K
18.64 mi13:19:332:28:147:5725:33
8:13
+0:11
20M
20.00 mi13:30:342:39:157:5811:01
8:06
-0:07
21M
21.00 mi13:38:522:47:337:598:18
8:18
+0:12
35K
21.75 mi13:44:462:53:277:595:54
7:53
-0:25
23M
23.00 mi13:54:443:03:257:589:58
7:58
+0:05
24M
24.00 mi14:02:143:10:557:577:30
7:30
-0:28
40K
24.85 mi14:08:553:17:367:576:41
7:49
+0:19
25.2M
25.20 mi14:11:443:20:257:572:49
8:10
+0:21
Finish
26.22 mi14:19:233:28:047:567:39
7:30
-0:40

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

7:30 /mi

Average Pace

7:56 /mi

Slowest Pace

8:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:46

96% of race

Time at Steady Pace

8:18

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi11:15:3424:157:4824:15
7:48
#14842
10K
6.21 mi11:39:5348:347:4924:19
7:50
#14906
15K
9.32 mi12:04:291:13:107:5124:36
7:55
#15072
20K
12.43 mi12:29:081:37:497:5224:39
7:56
#14837
Half
13.11 mi12:34:321:43:137:525:24
7:55
#14859
25K
15.53 mi12:54:002:02:417:5419:28
8:02
#14699
30K
18.64 mi13:19:332:28:147:5725:33
8:13
#14299
20M
20.00 mi13:30:342:39:157:5811:01
8:06
#14003
21M
21.00 mi13:38:522:47:337:598:18
8:18
#13683
35K
21.75 mi13:44:462:53:277:595:54
7:53
#13586
23M
23.00 mi13:54:443:03:257:589:58
7:58
#13324
24M
24.00 mi14:02:143:10:557:577:30
7:30
#13066
40K
24.85 mi14:08:553:17:367:576:41
7:49
#12896
25.2M
25.20 mi14:11:443:20:257:572:49
8:10
#12778
Finish
26.22 mi14:19:233:28:047:567:39
7:30
#12606
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi14842103631036315360(Top 54%)10525(Top 65%)10525(Top 836%)
10K6.21 mi3.10 mi14906-64103631036315042(Top 53%)10433(Top 65%)10433(Top 829%)
15K9.32 mi3.11 mi15072-16610429-6610429-6615360(Top 54%)10525(Top 65%)10525(Top 836%)
20K12.43 mi3.11 mi14837+23510300+12910300+12914390(Top 51%)10039(Top 62%)10039(Top 797%)
Half13.11 mi0.68 mi14859-2210301-110301-115133(Top 53%)10380(Top 64%)10380(Top 824%)
25K15.53 mi2.42 mi14699+16010209+9210209+9214100(Top 50%)9805(Top 61%)9805(Top 779%)
30K18.64 mi3.11 mi14299+4009978+2319978+23112982(Top 46%)9131(Top 57%)9131(Top 725%)
20M20.00 mi1.36 mi14003+2969816+1629816+16211149(Top 39%)8111(Top 50%)8111(Top 644%)
21M21.00 mi1.00 mi13683+3209649+1679649+1679222(Top 32%)6952(Top 43%)6952(Top 552%)
35K21.75 mi0.75 mi13586+979581+689581+6811443(Top 40%)8077(Top 50%)8077(Top 642%)
23M23.00 mi1.25 mi13324+2629434+1479434+1479739(Top 34%)7107(Top 44%)7107(Top 564%)
24M24.00 mi1.00 mi13066+2589289+1459289+1457695(Top 27%)5943(Top 37%)5943(Top 472%)
40K24.85 mi0.85 mi12896+1709184+1059184+1058890(Top 31%)6472(Top 40%)6472(Top 514%)
25.2M25.20 mi0.35 mi12778+1189124+609124+606884(Top 24%)5303(Top 33%)5303(Top 421%)
Finish26.22 mi1.02 mi12606+1729019+1059019+1059234(Top 33%)6579(Top 41%)6579(Top 523%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15360

Males

10525

M60-64

10525

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

15042

Males

10433

M60-64

10433

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15360

Males

10525

M60-64

10525

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14390

Males

10039

M60-64

10039

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

15133

Males

10380

M60-64

10380

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14100

Males

9805

M60-64

9805

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12982

Males

9131

M60-64

9131

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11149

Males

8111

M60-64

8111

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

9222

Males

6952

M60-64

6952

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11443

Males

8077

M60-64

8077

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9739

Males

7107

M60-64

7107

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7695

Males

5943

M60-64

5943

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8890

Males

6472

M60-64

6472

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6884

Males

5303

M60-64

5303

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9234

Males

6579

M60-64

6579

Passing Analysis

Category:
Athletes Passed
3239
Passed By
1003
Net Change
+2236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14842
5K → 10K260324-64#14842#14906
10K → 15K151317-166#14906#15072
15K → 20K32893+235#15072#14837
20K → Half2850-22#14837#14859
Half → 25K24787+160#14859#14699
25K → 30K46666+400#14699#14299
30K → 20M30812+296#14299#14003
20M → 21M3244+320#14003#13683
21M → 35K11215+97#13683#13586
35K → 23M27210+262#13586#13324
23M → 24M2602+258#13324#13066
24M → 40K1777+170#13066#12896
40K → 25.2M1191+118#12896#12778
25.2M → Finish18715+172#12778#12606
TOTALS32391003+2236
📊

Passing Visuals

Category:
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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