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BOSTON MARATHON 2025

David Parsons

WA

Bib: 18604 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 43%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 45%
Division (M70-74)
#0 / 228
Top 0.9%
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
7:51/mi
48:37
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:45/mi
1:12:43
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:42/mi
1:36:38
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:37/mi
1:41:50
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:42/mi
2:00:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:56/mi
2:25:09
↑ 181↓ 1480.2%
138 ft elev
20M
8:07/mi
2:36:11
↑ 64↓ 500.2%
148 ft elev
21M
8:36/mi
2:44:47
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:46/mi
2:50:36
↑ 17↓ 861.7%
156 ft elev
23M
8:08/mi
3:00:47
↑ 23↓ 630.6%
116 ft elev
24M
7:51/mi
3:08:38
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:01/mi
3:15:29
↓ 200.3%
20 ft elev
25.2M
8:51/mi
3:18:32
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:56/mi
3:26:37
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:41:507:46 /mi⚡ faster
2nd Half
1:44:478:00 /mi+2.9%
Positive split — 2.9% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:157:483.11 mi24:15
7:48
-
10K
48:377:493.10 mi24:22
7:51
+0:03
15K
1:12:437:483.11 mi24:06
7:45
-0:06
20K
1:36:387:473.11 mi23:55
7:42
-0:03
Half(13.11 mi)
1:41:507:460.68 mi5:12
7:37
-0:05
25K
2:00:317:452.42 mi18:41
7:42
+0:05
30K
2:25:097:473.11 mi24:38
7:56
+0:14
20M
2:36:117:491.36 mi11:02
8:07
+0:11
21M
2:44:477:511.00 mi8:36
8:36
+0:29
35K
2:50:367:510.75 mi5:49
7:46
-0:50
23M
3:00:477:521.25 mi10:11
8:08
+0:22
24M
3:08:387:521.00 mi7:51
7:51
-0:17
40K
3:15:297:520.85 mi6:51
8:01
+0:10
25.2M
3:18:327:530.35 mi3:03
8:51
+0:50
Finish(26.22 mi)
3:26:377:531.02 mi8:05
7:56
-0:55
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:37 /mi

Average Pace

7:53 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:14:58

94% of race

Time at Steady Pace

11:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:53 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi1483810359103591398099299929
10K3.10 mi14975-13710394-3510394-35151861048510485
15K3.11 mi14637+33810257+13710257+1371398099299929
20K3.11 mi14043+5949976+2819976+2811238391389138
Half(13.11 mi)0.68 mi13976+679942+349942+341269093139313
25K2.42 mi13507+4699695+2479695+2471157986588658
30K3.11 mi12960+5479398+2979398+2971085781208120
20M1.36 mi12807+1539304+949304+941123381528152
21M1.00 mi12666+1419205+999205+991108279157915
35K0.75 mi12569+979138+679138+671061076797679
23M1.25 mi12435+1349032+1069032+1061093877147714
24M1.00 mi12327+1088958+748958+741018472657265
40K0.85 mi12218+1098868+908868+901028471977197
25.2M0.35 mi12182+368836+328836+321087374267426
Finish(26.22 mi)1.02 mi12168+148800+368800+361240282358235

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13980

Males

9929

M70-74

9929

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

15186

Males

10485

M70-74

10485

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13980

Males

9929

M70-74

9929

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12383

Males

9138

M70-74

9138

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12690

Males

9313

M70-74

9313

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11579

Males

8658

M70-74

8658

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10857

Males

8120

M70-74

8120

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11233

Males

8152

M70-74

8152

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

11082

Males

7915

M70-74

7915

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10610

Males

7679

M70-74

7679

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10938

Males

7714

M70-74

7714

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10184

Males

7265

M70-74

7265

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10284

Males

7197

M70-74

7197

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10873

Males

7426

M70-74

7426

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

12402

Males

8235

M70-74

8235

Passing Analysis

Category:
Passed
3435
Passed By
765
Net Change
+2670
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14838
5K → 10K232369-137#14838#14975
10K → 15K40769+338#14975#14637
15K → 20K6017+594#14637#14043
20K → Half8114+67#14043#13976
Half → 25K4756+469#13976#13507
25K → 30K57831+547#13507#12960
30K → 20M20350+153#12960#12807
20M → 21M18241+141#12807#12666
21M → 35K11417+97#12666#12569
35K → 23M18046+134#12569#12435
23M → 24M12921+108#12435#12327
24M → 40K13021+109#12327#12218
40K → 25.2M5115+36#12218#12182
25.2M → Finish7258+14#12182#12168
TOTALS3435765+2670

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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