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BOSTON MARATHON 2025

Andrew Giassa

Bib: 3023•M

SK

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:07
Rank: #680
Start → 5K
18:07 | 5:50/mi
10K· 6.21 mi
36:11
Rank: #642 (+38)
5K → 10K
18:04 | 5:49/mi
15K· 9.32 mi
55:05
Rank: #817 (-175)
10K → 15K
18:54 | 6:05/mi
20K· 12.43 mi
1:14:42
Rank: #1028 (-211)
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:19:02
Rank: #1078 (-50)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:34:45
Rank: #1277 (-199)
Half → 25K
15:43 | 6:29/mi
30K· 18.64 mi
1:55:44
Rank: #1525 (-248)
25K → 30K
20:59 | 6:45/mi
20M
2:05:05
Rank: #1620 (-95)
30K → 20M
9:21 | 6:53/mi
21M
2:12:23
Rank: #1696 (-76)
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:17:37
Rank: #1776 (-80)
21M → 35K
5:14 | 7:00/mi
23M
2:26:45
Rank: #1922 (-146)
35K → 23M
9:08 | 7:18/mi
24M
2:34:07
Rank: #2076 (-154)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
2:40:33
Rank: #2202 (-126)
24M → 40K
6:26 | 7:31/mi
25.2M
2:43:22
Rank: #2262 (-60)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:50:38
Rank: #2384 (-122)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:02
Pace6:02 /mi
2nd Half
Distance13.11 mi
Time1:31:36
Pace6:59 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3618:075:5018:07
5:50
-
10K
6.21 mi10:37:4036:115:4918:04
5:49
-0:01
15K
9.32 mi10:56:3455:055:5518:54
6:05
+0:16
20K
12.43 mi11:16:111:14:426:0119:37
6:19
+0:14
Half
13.11 mi11:20:311:19:026:024:20
6:21
+0:02
25K
15.53 mi11:36:141:34:456:0615:43
6:29
+0:08
30K
18.64 mi11:57:131:55:446:1320:59
6:45
+0:16
20M
20.00 mi12:06:342:05:056:159:21
6:53
+0:08
21M
21.00 mi12:13:522:12:236:187:18
7:18
+0:25
35K
21.75 mi12:19:062:17:376:205:14
7:00
-0:18
23M
23.00 mi12:28:142:26:456:239:08
7:18
+0:18
24M
24.00 mi12:35:362:34:076:257:22
7:22
+0:04
40K
24.85 mi12:42:022:40:336:286:26
7:31
+0:09
25.2M
25.20 mi12:44:512:43:226:292:49
8:10
+0:39
Finish
26.22 mi12:52:072:50:386:317:16
7:08
-1:02

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

5:49 /mi

Average Pace

6:31 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:45

56% of race

Time at Steady Pace

42:50

25% of race

Time at Slower Pace

33:03

19% of race

Average Pace: 6:30 /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 mi10:19:3618:075:5018:07
5:50
#680
10K
6.21 mi10:37:4036:115:4918:04
5:49
#642
15K
9.32 mi10:56:3455:055:5518:54
6:05
#817
20K
12.43 mi11:16:111:14:426:0119:37
6:19
#1028
Half
13.11 mi11:20:311:19:026:024:20
6:21
#1078
25K
15.53 mi11:36:141:34:456:0615:43
6:29
#1277
30K
18.64 mi11:57:131:55:446:1320:59
6:45
#1525
20M
20.00 mi12:06:342:05:056:159:21
6:53
#1620
21M
21.00 mi12:13:522:12:236:187:18
7:18
#1696
35K
21.75 mi12:19:062:17:376:205:14
7:00
#1776
23M
23.00 mi12:28:142:26:456:239:08
7:18
#1922
24M
24.00 mi12:35:362:34:076:257:22
7:22
#2076
40K
24.85 mi12:42:022:40:336:286:26
7:31
#2202
25.2M
25.20 mi12:44:512:43:226:292:49
8:10
#2262
Finish
26.22 mi12:52:072:50:386:317:16
7:08
#2384
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6806336331316(Top 5%)1249(Top 8%)1249(Top 22%)
10K6.21 mi3.10 mi642+38596+37596+37644(Top 2%)600(Top 4%)600(Top 11%)
15K9.32 mi3.11 mi817-175765-169765-1691316(Top 5%)1249(Top 8%)1249(Top 22%)
20K12.43 mi3.11 mi1028-211968-203968-2032080(Top 7%)1984(Top 12%)1984(Top 35%)
Half13.11 mi0.68 mi1078-501018-501018-502816(Top 10%)2692(Top 17%)2692(Top 48%)
25K15.53 mi2.42 mi1277-1991207-1891207-1892797(Top 10%)2661(Top 17%)2661(Top 47%)
30K18.64 mi3.11 mi1525-2481445-2381445-2383166(Top 11%)2970(Top 18%)2970(Top 53%)
20M20.00 mi1.36 mi1620-951535-901535-903391(Top 12%)3137(Top 19%)3137(Top 56%)
21M21.00 mi1.00 mi1696-761608-731608-733629(Top 13%)3318(Top 21%)3318(Top 59%)
35K21.75 mi0.75 mi1776-801686-781686-785314(Top 19%)4596(Top 29%)4596(Top 81%)
23M23.00 mi1.25 mi1922-1461824-1381824-1385434(Top 19%)4623(Top 29%)4623(Top 82%)
24M24.00 mi1.00 mi2076-1541973-1491973-1496801(Top 24%)5400(Top 34%)5400(Top 96%)
40K24.85 mi0.85 mi2202-1262093-1202093-1206910(Top 24%)5365(Top 33%)5365(Top 95%)
25.2M25.20 mi0.35 mi2262-602149-562149-566803(Top 24%)5222(Top 32%)5222(Top 93%)
Finish26.22 mi1.02 mi2384-1222259-1102259-1106551(Top 23%)5063(Top 31%)5063(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1316

Males

1249

M18-39

1249

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

644

Males

600

M18-39

600

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1316

Males

1249

M18-39

1249

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2080

Males

1984

M18-39

1984

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2816

Males

2692

M18-39

2692

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2797

Males

2661

M18-39

2661

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3166

Males

2970

M18-39

2970

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3391

Males

3137

M18-39

3137

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3629

Males

3318

M18-39

3318

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5314

Males

4596

M18-39

4596

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5434

Males

4623

M18-39

4623

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6801

Males

5400

M18-39

5400

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6910

Males

5365

M18-39

5365

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6803

Males

5222

M18-39

5222

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6551

Males

5063

M18-39

5063

Passing Analysis

Category:
Athletes Passed
169
Passed By
1873
Net Change
-1704
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#680
5K → 10K5315+38#680#642
10K → 15K0175-175#642#817
15K → 20K4215-211#817#1028
20K → Half252-50#1028#1078
Half → 25K6205-199#1078#1277
25K → 30K9257-248#1277#1525
30K → 20M15110-95#1525#1620
20M → 21M26102-76#1620#1696
21M → 35K989-80#1696#1776
35K → 23M14160-146#1776#1922
23M → 24M12166-154#1922#2076
24M → 40K10136-126#2076#2202
40K → 25.2M565-60#2202#2262
25.2M → Finish4126-122#2262#2384
TOTALS1691873-1704
📊

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