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BOSTON MARATHON 2025

Christopher Dawson-Jouzdani

Bib: 3819•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 9%
Division (M18-39)
#0 / 5642
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:16/mi
19:29
↑ 97↓ 3451.5%
10K· 6.21 mi
6:14/mi
38:51
↑ 79↓ 1380.4%
15K· 9.32 mi
6:12/mi
58:06
↑ 67↓ 78
20K· 12.43 mi
6:13/mi
1:17:26
↑ 106↓ 860.1%
Half· 13.11 mi
6:11/mi
1:21:39
↑ 19↓ 370.5%
25K· 15.53 mi
6:14/mi
1:36:45
↑ 66↓ 880.2%
30K· 18.64 mi
6:24/mi
1:56:39
↑ 181↓ 1480.2%
20M
6:26/mi
2:05:24
↑ 64↓ 500.2%
21M
6:47/mi
2:12:11
↑ 106↓ 241.6%
35K· 21.75 mi
6:14/mi
2:16:51
↑ 17↓ 861.7%
23M
6:31/mi
2:25:00
↑ 23↓ 630.6%
24M
6:25/mi
2:31:25
↓ 821.3%
40K· 24.85 mi
6:29/mi
2:36:58
↓ 200.3%
25.2M
7:09/mi
2:39:26
↑ 13↓ 160.2%
Finish· 26.22 mi
6:10/mi
2:45:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:39
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:24:04
Pace6:25 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0419:296:1619:29
6:16
-
10K
6.21 mi10:41:2638:516:1519:22
6:14
-0:02
15K
9.32 mi11:00:4158:066:1419:15
6:12
-0:02
20K
12.43 mi11:20:011:17:266:1419:20
6:13
+0:01
Half
13.11 mi11:24:141:21:396:144:13
6:11
-0:02
25K
15.53 mi11:39:201:36:456:1415:06
6:14
+0:03
30K
18.64 mi11:59:141:56:396:1519:54
6:24
+0:10
20M
20.00 mi12:07:592:05:246:168:45
6:26
+0:02
21M
21.00 mi12:14:462:12:116:186:47
6:47
+0:21
35K
21.75 mi12:19:262:16:516:184:40
6:14
-0:33
23M
23.00 mi12:27:352:25:006:188:09
6:31
+0:17
24M
24.00 mi12:34:002:31:256:196:25
6:25
-0:06
40K
24.85 mi12:39:332:36:586:195:33
6:29
+0:04
25.2M
25.20 mi12:42:012:39:266:202:28
7:09
+0:40
Finish
26.22 mi12:48:182:45:436:206:17
6:10
-0:59

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

6:10 /mi

Average Pace

6:20 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:28

94% of race

Time at Steady Pace

9:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:19 /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 mi10:22:0419:296:1619:29
6:16
#2244
10K
6.21 mi10:41:2638:516:1519:22
6:14
#2140
15K
9.32 mi11:00:4158:066:1419:15
6:12
#2013
20K
12.43 mi11:20:011:17:266:1419:20
6:13
#1900
Half
13.11 mi11:24:141:21:396:144:13
6:11
#1902
25K
15.53 mi11:39:201:36:456:1415:06
6:14
#1824
30K
18.64 mi11:59:141:56:396:1519:54
6:24
#1746
20M
20.00 mi12:07:592:05:246:168:45
6:26
#1696
21M
21.00 mi12:14:462:12:116:186:47
6:47
#1646
35K
21.75 mi12:19:262:16:516:184:40
6:14
#1623
23M
23.00 mi12:27:352:25:006:188:09
6:31
#1562
24M
24.00 mi12:34:002:31:256:196:25
6:25
#1541
40K
24.85 mi12:39:332:36:586:195:33
6:29
#1517
25.2M
25.20 mi12:42:012:39:266:202:28
7:09
#1513
Finish
26.22 mi12:48:182:45:436:206:17
6:10
#1490
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2244214321431836(Top 6%)1747(Top 11%)1747(Top 31%)
10K6.21 mi3.10 mi2140+1042042+1012042+1012060(Top 7%)1963(Top 12%)1963(Top 35%)
15K9.32 mi3.11 mi2013+1271917+1251917+1251836(Top 6%)1747(Top 11%)1747(Top 31%)
20K12.43 mi3.11 mi1900+1131811+1061811+1061665(Top 6%)1583(Top 10%)1583(Top 28%)
Half13.11 mi0.68 mi1902-21813-21813-21850(Top 7%)1763(Top 11%)1763(Top 31%)
25K15.53 mi2.42 mi1824+781736+771736+771566(Top 6%)1487(Top 9%)1487(Top 26%)
30K18.64 mi3.11 mi1746+781661+751661+751577(Top 6%)1494(Top 9%)1494(Top 26%)
20M20.00 mi1.36 mi1696+501610+511610+511381(Top 5%)1306(Top 8%)1306(Top 23%)
21M21.00 mi1.00 mi1646+501560+501560+501459(Top 5%)1375(Top 9%)1375(Top 24%)
35K21.75 mi0.75 mi1623+231539+211539+211367(Top 5%)1294(Top 8%)1294(Top 23%)
23M23.00 mi1.25 mi1562+611479+601479+601480(Top 5%)1390(Top 9%)1390(Top 25%)
24M24.00 mi1.00 mi1541+211457+221457+221704(Top 6%)1589(Top 10%)1589(Top 28%)
40K24.85 mi0.85 mi1517+241434+231434+231555(Top 5%)1439(Top 9%)1439(Top 26%)
25.2M25.20 mi0.35 mi1513+41429+51429+51918(Top 7%)1731(Top 11%)1731(Top 31%)
Finish26.22 mi1.02 mi1490+231407+221407+221403(Top 5%)1306(Top 8%)1306(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21story building
+97ft-345ft

Overall

1836

Males

1747

M18-39

1747

5K→10K

3.1 - 6.2 mi

Top 7%
×5story building
+79ft-138ft

Overall

2060

Males

1963

M18-39

1963

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+67ft-78ft

Overall

1836

Males

1747

M18-39

1747

15K→20K

9.3 - 12.4 mi

Top 6%
×5story building
+106ft-86ft

Overall

1665

Males

1583

M18-39

1583

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

1850

Males

1763

M18-39

1763

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1566

Males

1487

M18-39

1487

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1577

Males

1494

M18-39

1494

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1381

Males

1306

M18-39

1306

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1459

Males

1375

M18-39

1375

21M→35K

21.0 - 21.8 mi

Top 5%
×7story building
+17ft-86ft

Overall

1367

Males

1294

M18-39

1294

35K→23M

21.8 - 23.0 mi

Top 5%
×5story building
+23ft-63ft

Overall

1480

Males

1390

M18-39

1390

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1704

Males

1589

M18-39

1589

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1555

Males

1439

M18-39

1439

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1918

Males

1731

M18-39

1731

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1403

Males

1306

M18-39

1306

Passing Analysis

Category:
Athletes Passed
1006
Passed By
252
Net Change
+754
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2244
5K → 10K16965+104#2244#2140
10K → 15K14518+127#2140#2013
15K → 20K12714+113#2013#1900
20K → Half1012-2#1900#1902
Half → 25K857+78#1902#1824
25K → 30K11234+78#1824#1746
30K → 20M6414+50#1746#1696
20M → 21M6313+50#1696#1646
21M → 35K329+23#1646#1623
35K → 23M7413+61#1623#1562
23M → 24M3615+21#1562#1541
24M → 40K3511+24#1541#1517
40K → 25.2M117+4#1517#1513
25.2M → Finish4320+23#1513#1490
TOTALS1006252+754
📊

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