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BOSTON MARATHON 2025

Christopher Mertz

Bib: 9990•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M50-54)
#0 / 1996
Top 11%
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
6:56/mi
21:34
↑ 97↓ 3451.5%
10K· 6.21 mi
6:52/mi
42:54
↑ 79↓ 1380.4%
15K· 9.32 mi
6:53/mi
1:04:16
↑ 67↓ 78
20K· 12.43 mi
6:55/mi
1:25:46
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:30:25
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:47:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:03/mi
2:09:13
↑ 181↓ 1480.2%
20M
7:05/mi
2:18:51
↑ 64↓ 500.2%
21M
7:37/mi
2:26:28
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:31:40
↑ 17↓ 861.7%
23M
7:20/mi
2:40:51
↑ 23↓ 630.6%
24M
7:15/mi
2:48:06
↓ 821.3%
40K· 24.85 mi
7:29/mi
2:54:30
↓ 200.3%
25.2M
7:56/mi
2:57:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:00/mi
3:04:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:25
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:33:57
Pace7:10 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5521:346:5621:34
6:56
-
10K
6.21 mi11:08:1542:546:5421:20
6:52
-0:04
15K
9.32 mi11:29:371:04:166:5421:22
6:53
+0:01
20K
12.43 mi11:51:071:25:466:5421:30
6:55
+0:02
Half
13.11 mi11:55:461:30:256:544:39
6:49
-0:06
25K
15.53 mi12:12:391:47:186:5416:53
6:58
+0:09
30K
18.64 mi12:34:342:09:136:5621:55
7:03
+0:05
20M
20.00 mi12:44:122:18:516:579:38
7:05
+0:02
21M
21.00 mi12:51:492:26:286:587:37
7:37
+0:32
35K
21.75 mi12:57:012:31:406:585:12
6:57
-0:40
23M
23.00 mi13:06:122:40:517:009:11
7:20
+0:23
24M
24.00 mi13:13:272:48:067:007:15
7:15
-0:05
40K
24.85 mi13:19:512:54:307:016:24
7:29
+0:14
25.2M
25.20 mi13:22:352:57:147:022:44
7:56
+0:27
Finish
26.22 mi13:29:433:04:227:027:08
7:00
-0:56

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

6:49 /mi

Average Pace

7:02 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:01

94% of race

Time at Steady Pace

10:21

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:02 /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 mi10:46:5521:346:5621:34
6:56
#7361
10K
6.21 mi11:08:1542:546:5421:20
6:52
#7177
15K
9.32 mi11:29:371:04:166:5421:22
6:53
#7029
20K
12.43 mi11:51:071:25:466:5421:30
6:55
#6830
Half
13.11 mi11:55:461:30:256:544:39
6:49
#6805
25K
15.53 mi12:12:391:47:186:5416:53
6:58
#6626
30K
18.64 mi12:34:342:09:136:5621:55
7:03
#6204
20M
20.00 mi12:44:122:18:516:579:38
7:05
#6020
21M
21.00 mi12:51:492:26:286:587:37
7:37
#5913
35K
21.75 mi12:57:012:31:406:585:12
6:57
#5850
23M
23.00 mi13:06:122:40:517:009:11
7:20
#5765
24M
24.00 mi13:13:272:48:067:007:15
7:15
#5716
40K
24.85 mi13:19:512:54:307:016:24
7:29
#5691
25.2M
25.20 mi13:22:352:57:147:022:44
7:56
#5645
Finish
26.22 mi13:29:433:04:227:027:08
7:00
#5607
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi7361656665666788(Top 24%)6091(Top 38%)6091(Top 305%)
10K6.21 mi3.10 mi7177+1846428+1386428+1386993(Top 25%)6271(Top 39%)6271(Top 314%)
15K9.32 mi3.11 mi7029+1486309+1196309+1196788(Top 24%)6091(Top 38%)6091(Top 305%)
20K12.43 mi3.11 mi6830+1996153+1566153+1566345(Top 22%)5700(Top 35%)5700(Top 286%)
Half13.11 mi0.68 mi6805+256129+246129+246290(Top 22%)5675(Top 35%)5675(Top 284%)
25K15.53 mi2.42 mi6626+1795969+1605969+1606069(Top 21%)5454(Top 34%)5454(Top 273%)
30K18.64 mi3.11 mi6204+4225595+3745595+3745049(Top 18%)4581(Top 28%)4581(Top 230%)
20M20.00 mi1.36 mi6020+1845434+1615434+1614632(Top 16%)4202(Top 26%)4202(Top 211%)
21M21.00 mi1.00 mi5913+1075342+925342+925226(Top 18%)4547(Top 28%)4547(Top 228%)
35K21.75 mi0.75 mi5850+635287+555287+555081(Top 18%)4448(Top 28%)4448(Top 223%)
23M23.00 mi1.25 mi5765+855199+885199+885650(Top 20%)4775(Top 30%)4775(Top 239%)
24M24.00 mi1.00 mi5716+495146+535146+536112(Top 22%)4989(Top 31%)4989(Top 250%)
40K24.85 mi0.85 mi5691+255113+335113+336701(Top 24%)5258(Top 33%)5258(Top 263%)
25.2M25.20 mi0.35 mi5645+465067+465067+465557(Top 20%)4475(Top 28%)4475(Top 224%)
Finish26.22 mi1.02 mi5607+385024+435024+435723(Top 20%)4560(Top 28%)4560(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6788

Males

6091

M50-54

6091

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6993

Males

6271

M50-54

6271

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6788

Males

6091

M50-54

6091

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

6345

Males

5700

M50-54

5700

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6290

Males

5675

M50-54

5675

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

6069

Males

5454

M50-54

5454

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

5049

Males

4581

M50-54

4581

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4632

Males

4202

M50-54

4202

20M→21M

20.0 - 21.0 mi

Top 18%
×8story building
+106ft-24ft

Overall

5226

Males

4547

M50-54

4547

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5081

Males

4448

M50-54

4448

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5650

Males

4775

M50-54

4775

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6112

Males

4989

M50-54

4989

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6701

Males

5258

M50-54

5258

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5557

Males

4475

M50-54

4475

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5723

Males

4560

M50-54

4560

Passing Analysis

Category:
Athletes Passed
2246
Passed By
492
Net Change
+1754
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7361
5K → 10K311127+184#7361#7177
10K → 15K21870+148#7177#7029
15K → 20K24546+199#7029#6830
20K → Half4116+25#6830#6805
Half → 25K21435+179#6805#6626
25K → 30K43917+422#6626#6204
30K → 20M1895+184#6204#6020
20M → 21M12518+107#6020#5913
21M → 35K7815+63#5913#5850
35K → 23M12439+85#5850#5765
23M → 24M8031+49#5765#5716
24M → 40K6035+25#5716#5691
40K → 25.2M5610+46#5691#5645
25.2M → Finish6628+38#5645#5607
TOTALS2246492+1754
📊

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