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BOSTON MARATHON 2025

Chiara Gelinas

Bib: 15984•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Masters (Masters Women)
#0 / 6759
Top 25%
Division (F45-49)
#0 / 1813
Top 31%
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
8:06/mi
25:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:11/mi
50:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:16:08
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:41:46
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:47:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:07:14
↑ 66↓ 880.2%
30K· 18.64 mi
8:33/mi
2:33:47
↑ 181↓ 1480.2%
20M
8:33/mi
2:45:24
↑ 64↓ 500.2%
21M
8:55/mi
2:54:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:13/mi
3:00:28
↑ 17↓ 861.7%
23M
8:16/mi
3:10:49
↑ 23↓ 630.6%
24M
7:57/mi
3:18:46
↓ 821.3%
40K· 24.85 mi
8:00/mi
3:25:36
↓ 200.3%
25.2M
8:33/mi
3:28:33
↑ 13↓ 160.2%
Finish· 26.22 mi
7:47/mi
3:36:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:19
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:49:10
Pace8:20 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0525:118:0625:11
8:06
-
10K
6.21 mi11:22:2950:358:0825:24
8:11
+0:05
15K
9.32 mi11:48:021:16:088:1025:33
8:13
+0:02
20K
12.43 mi12:13:401:41:468:1125:38
8:15
+0:02
Half
13.11 mi12:19:131:47:198:115:33
8:08
-0:07
25K
15.53 mi12:39:082:07:148:1119:55
8:13
+0:05
30K
18.64 mi13:05:412:33:478:1526:33
8:33
+0:20
20M
20.00 mi13:17:182:45:248:1611:37
8:33
0:00
21M
21.00 mi13:26:132:54:198:188:55
8:55
+0:22
35K
21.75 mi13:32:223:00:288:186:09
8:13
-0:42
23M
23.00 mi13:42:433:10:498:1810:21
8:16
+0:03
24M
24.00 mi13:50:403:18:468:177:57
7:57
-0:19
40K
24.85 mi13:57:303:25:368:166:50
8:00
+0:03
25.2M
25.20 mi14:00:273:28:338:172:57
8:33
+0:33
Finish
26.22 mi14:08:233:36:298:167:56
7:47
-0:46

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

7:47 /mi

Average Pace

8:16 /mi

Slowest Pace

8:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:34

96% of race

Time at Steady Pace

8:55

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /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 mi10:57:0525:118:0625:11
8:06
#17393
10K
6.21 mi11:22:2950:358:0825:24
8:11
#17576
15K
9.32 mi11:48:021:16:088:1025:33
8:13
#17550
20K
12.43 mi12:13:401:41:468:1125:38
8:15
#17270
Half
13.11 mi12:19:131:47:198:115:33
8:08
#17233
25K
15.53 mi12:39:082:07:148:1119:55
8:13
#16900
30K
18.64 mi13:05:412:33:478:1526:33
8:33
#16533
20M
20.00 mi13:17:182:45:248:1611:37
8:33
#16315
21M
21.00 mi13:26:132:54:198:188:55
8:55
#16087
35K
21.75 mi13:32:223:00:288:186:09
8:13
#15969
23M
23.00 mi13:42:433:10:498:1810:21
8:16
#15687
24M
24.00 mi13:50:403:18:468:177:57
7:57
#15485
40K
24.85 mi13:57:303:25:368:166:50
8:00
#15256
25.2M
25.20 mi14:00:273:28:338:172:57
8:33
#15140
Finish
26.22 mi14:08:233:36:298:167:56
7:47
#14966
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi173935966596617549(Top 62%)6041(Top 49%)6041(Top 333%)
10K6.21 mi3.10 mi17576-1836082-1166082-11617724(Top 62%)6132(Top 50%)6132(Top 338%)
15K9.32 mi3.11 mi17550+266042+406042+4017549(Top 62%)6041(Top 49%)6041(Top 333%)
20K12.43 mi3.11 mi17270+2805897+1455897+14516630(Top 59%)5561(Top 45%)5561(Top 307%)
Half13.11 mi0.68 mi17233+375882+155882+1516868(Top 59%)5671(Top 46%)5671(Top 313%)
25K15.53 mi2.42 mi16900+3335705+1775705+17715404(Top 54%)4957(Top 41%)4957(Top 273%)
30K18.64 mi3.11 mi16533+3675543+1625543+16215060(Top 53%)4935(Top 40%)4935(Top 272%)
20M20.00 mi1.36 mi16315+2185443+1005443+10014110(Top 50%)4574(Top 37%)4574(Top 252%)
21M21.00 mi1.00 mi16087+2285349+945349+9413059(Top 46%)4159(Top 34%)4159(Top 229%)
35K21.75 mi0.75 mi15969+1185304+455304+4513800(Top 49%)4580(Top 37%)4580(Top 253%)
23M23.00 mi1.25 mi15687+2825182+1225182+12211871(Top 42%)3682(Top 30%)3682(Top 203%)
24M24.00 mi1.00 mi15485+2025084+985084+9810946(Top 39%)3288(Top 27%)3288(Top 181%)
40K24.85 mi0.85 mi15256+2294991+934991+9310215(Top 36%)3055(Top 25%)3055(Top 169%)
25.2M25.20 mi0.35 mi15140+1164933+584933+589263(Top 33%)2700(Top 22%)2700(Top 149%)
Finish26.22 mi1.02 mi14966+1744851+824851+8211376(Top 40%)3662(Top 30%)3662(Top 202%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17549

Females

6041

F45-49

6041

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17724

Females

6132

F45-49

6132

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17549

Females

6041

F45-49

6041

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16630

Females

5561

F45-49

5561

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16868

Females

5671

F45-49

5671

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15404

Females

4957

F45-49

4957

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15060

Females

4935

F45-49

4935

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

14110

Females

4574

F45-49

4574

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

13059

Females

4159

F45-49

4159

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13800

Females

4580

F45-49

4580

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11871

Females

3682

F45-49

3682

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10946

Females

3288

F45-49

3288

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10215

Females

3055

F45-49

3055

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9263

Females

2700

F45-49

2700

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11376

Females

3662

F45-49

3662

Passing Analysis

Category:
Athletes Passed
3225
Passed By
798
Net Change
+2427
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17393
5K → 10K210393-183#17393#17576
10K → 15K214188+26#17576#17550
15K → 20K33757+280#17550#17270
20K → Half5215+37#17270#17233
Half → 25K35421+333#17233#16900
25K → 30K41952+367#16900#16533
30K → 20M23820+218#16533#16315
20M → 21M24214+228#16315#16087
21M → 35K13113+118#16087#15969
35K → 23M2908+282#15969#15687
23M → 24M2042+202#15687#15485
24M → 40K2301+229#15485#15256
40K → 25.2M1171+116#15256#15140
25.2M → Finish18713+174#15140#14966
TOTALS3225798+2427
📊

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